Maingron/MainOS

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Using width with border-right can sometimes make elements larger than you expect.
Open

  border-right:2px solid gray;
Severity: Minor
Found in Program Files/hype/style.css by csslint

Expected end of value but found 'var(--themecolor2)'.
Open

body{padding:0;margin:0;overflow-x:hidden;scrollbar-width:thin;height:auto;background:var(--themecolor);border-left:1px solid #000;width:100%}*{scrollbar-width:thin;margin:0;padding:0;box-sizing:border-box;color:#fff}.notifications{height:auto;position:relative;padding-top:.5em;padding-bottom:.5em}.a_notificaton{background:#000;position:relative;height:auto;width:auto;display:block;padding:.5em;margin:.5em;border:1px solid var(--themecolor2);border-radius:var(--border-radius)}.a_notificaton .notification_icon{position:absolute;top:.5em;left:.5em;height:1.5em}.a_notificaton h3{text-align:center;padding-bottom:.5em;margin-bottom:.25em;font-size:1.25em;border-bottom:1px solid var(--themecolor2);line-height:1}.a_notificaton p{display:block;box-sizing:border-box;height:auto}.a_notificaton hr{border:0;border-bottom:1px solid var(--themecolor2)}.a_notificaton .meta{border-top:1px solid var(--themecolor2);text-align:right;line-height:1;padding-top:.25em;margin-top:.25em}.rm_not{display:inline;position:absolute;top:0;right:0;background-color:rgba(255,0,0,.4);border:0;height:24px;width:24px;border-radius:0;transition:.1s}/*# sourceMappingURL=style.min.css.map */

Don't use IDs in selectors.
Open

body{margin:0;overflow:hidden;height:100vh;display:flex;flex-direction:column}body.big_buttons #headbar2{height:2.4rem}body.big_buttons #content_files a{width:72px}#headbar2{display:flex;position:relative;top:0;justify-content:space-between;background-color:#ddb;height:1.8em;width:100%;border-bottom:1px solid #999;overflow:visible;font-size:1em}#headbar2 form{display:flex;height:100%;position:relative}#headbar2 form input,#headbar2 form button{box-sizing:border-box}#headbar2 form input[type=text]{width:100%;height:100%;border-right:0;padding:0 10px}#headbar2 form button{width:auto;height:100%;border-left:0;padding:0}#headbar2 form button img{width:auto;height:100%}#headbar2 img,#headbar2 a{display:inline-block;position:relative;height:100%;margin:0;padding:0;box-sizing:border-box}#headbar2 a{padding:2px}#content_files{padding:15px;position:relative;overflow:scroll;overflow-x:hidden;width:100%;left:0;height:100%;box-sizing:border-box;display:flex;justify-content:start;align-content:start;flex-wrap:wrap}#content_files a{background-color:rgba(0,0,0,0);border:0;margin:4px;overflow:hidden;width:64px;height:auto;max-height:100px;z-index:10;top:0;left:0;float:left;text-align:center;align-content:start;-webkit-user-select:none;-moz-user-select:none;user-select:none;word-break:break-word;display:inline-block;position:relative;font-size:.85em;text-decoration:none;border-radius:var(--border-radius) !important}#content_files a:hover,#content_files a:focus-visible{overflow:visible;z-index:20}#content_files a.fattr-hidden{opacity:.7}#content_files a .color_dot_div{position:absolute;bottom:40px;left:50%;transform:translateX(-50%);border-radius:50px;line-height:0;width:80%;-webkit-user-select:none;-moz-user-select:none;user-select:none;pointer-events:none}#content_files a .color_dot_div .color_dot{width:12px;height:12px;border-radius:50%;border:1px solid rgba(119,119,119,.6);background-color:rgba(119,119,119,.6666666667);margin:1px;padding:0;display:inline-block;position:relative;background-repeat:no-repeat;top:0;right:0}#content_files a .color_dot_div .color_dot_A{background-color:red}#content_files a .color_dot_div .color_dot_B{background-color:orange}#content_files a .color_dot_div .color_dot_C{background-color:#ff0}#content_files a .color_dot_div .color_dot_D{background-color:green}#content_files a .color_dot_div .color_dot_E{background-color:blue}#content_files a .color_dot_div .color_dot_F{background-color:purple}#content_files a .color_dot_div .color_dot_0{background-image:url("../../../logo.png");background-size:100%;border-radius:25%}#content_files a .color_dot_div .color_dot_outdated{background-color:rgba(255,0,0,.6666666667);border-radius:25%;width:5px}#content_files a .color_dot_div .color_dot_outdated::after{content:"!";line-height:.8;display:table-cell}#content_files a img{position:relative;display:block;top:0;margin-top:2px;height:64px;max-height:150px;pointer-events:none;width:100%;overflow:hidden;-o-object-fit:contain;object-fit:contain;pointer-events:none;margin:0}#bottom_info{position:relative;width:100%;background:rgba(119,119,119,.2666666667);height:auto;max-height:40vh;overflow:hidden;position:relative;bottom:0;left:0;padding:20px;box-sizing:border-box;border-top:1px solid var(--themecolor);display:block}#bottom_info meter{width:290px;max-width:100%}#bottom_info div.icon{display:inline-block;float:left;margin-right:20px;transform:scale(1.5)}#spaceinfo{background:var(--black2);height:auto;overflow:hidden;width:100%;position:relative;bottom:0;left:0;padding:20px;box-sizing:border-box;border-top:1px solid var(--themecolor)}#spaceinfo meter{width:290px;max-width:100%}@media(prefers-color-scheme: light){#spaceinfo{background:var(--beige3)}}@media(prefers-color-scheme: dark){#headbar2{background:var(--black2);border:none}#headbar2 p{color:#fff}meter{filter:invert(1)}meter::-webkit-meter-optimum-value{filter:invert(1)}meter::-moz-meter-bar{filter:invert(1)}}/*# sourceMappingURL=explorerstyle.min.css.map */

Fallback background (hex or RGB) should precede RGBA background.
Open

body{margin:0;overflow:hidden;height:100vh;display:flex;flex-direction:column}body.big_buttons #headbar2{height:2.4rem}body.big_buttons #content_files a{width:72px}#headbar2{display:flex;position:relative;top:0;justify-content:space-between;background-color:#ddb;height:1.8em;width:100%;border-bottom:1px solid #999;overflow:visible;font-size:1em}#headbar2 form{display:flex;height:100%;position:relative}#headbar2 form input,#headbar2 form button{box-sizing:border-box}#headbar2 form input[type=text]{width:100%;height:100%;border-right:0;padding:0 10px}#headbar2 form button{width:auto;height:100%;border-left:0;padding:0}#headbar2 form button img{width:auto;height:100%}#headbar2 img,#headbar2 a{display:inline-block;position:relative;height:100%;margin:0;padding:0;box-sizing:border-box}#headbar2 a{padding:2px}#content_files{padding:15px;position:relative;overflow:scroll;overflow-x:hidden;width:100%;left:0;height:100%;box-sizing:border-box;display:flex;justify-content:start;align-content:start;flex-wrap:wrap}#content_files a{background-color:rgba(0,0,0,0);border:0;margin:4px;overflow:hidden;width:64px;height:auto;max-height:100px;z-index:10;top:0;left:0;float:left;text-align:center;align-content:start;-webkit-user-select:none;-moz-user-select:none;user-select:none;word-break:break-word;display:inline-block;position:relative;font-size:.85em;text-decoration:none;border-radius:var(--border-radius) !important}#content_files a:hover,#content_files a:focus-visible{overflow:visible;z-index:20}#content_files a.fattr-hidden{opacity:.7}#content_files a .color_dot_div{position:absolute;bottom:40px;left:50%;transform:translateX(-50%);border-radius:50px;line-height:0;width:80%;-webkit-user-select:none;-moz-user-select:none;user-select:none;pointer-events:none}#content_files a .color_dot_div .color_dot{width:12px;height:12px;border-radius:50%;border:1px solid rgba(119,119,119,.6);background-color:rgba(119,119,119,.6666666667);margin:1px;padding:0;display:inline-block;position:relative;background-repeat:no-repeat;top:0;right:0}#content_files a .color_dot_div .color_dot_A{background-color:red}#content_files a .color_dot_div .color_dot_B{background-color:orange}#content_files a .color_dot_div .color_dot_C{background-color:#ff0}#content_files a .color_dot_div .color_dot_D{background-color:green}#content_files a .color_dot_div .color_dot_E{background-color:blue}#content_files a .color_dot_div .color_dot_F{background-color:purple}#content_files a .color_dot_div .color_dot_0{background-image:url("../../../logo.png");background-size:100%;border-radius:25%}#content_files a .color_dot_div .color_dot_outdated{background-color:rgba(255,0,0,.6666666667);border-radius:25%;width:5px}#content_files a .color_dot_div .color_dot_outdated::after{content:"!";line-height:.8;display:table-cell}#content_files a img{position:relative;display:block;top:0;margin-top:2px;height:64px;max-height:150px;pointer-events:none;width:100%;overflow:hidden;-o-object-fit:contain;object-fit:contain;pointer-events:none;margin:0}#bottom_info{position:relative;width:100%;background:rgba(119,119,119,.2666666667);height:auto;max-height:40vh;overflow:hidden;position:relative;bottom:0;left:0;padding:20px;box-sizing:border-box;border-top:1px solid var(--themecolor);display:block}#bottom_info meter{width:290px;max-width:100%}#bottom_info div.icon{display:inline-block;float:left;margin-right:20px;transform:scale(1.5)}#spaceinfo{background:var(--black2);height:auto;overflow:hidden;width:100%;position:relative;bottom:0;left:0;padding:20px;box-sizing:border-box;border-top:1px solid var(--themecolor)}#spaceinfo meter{width:290px;max-width:100%}@media(prefers-color-scheme: light){#spaceinfo{background:var(--beige3)}}@media(prefers-color-scheme: dark){#headbar2{background:var(--black2);border:none}#headbar2 p{color:#fff}meter{filter:invert(1)}meter::-webkit-meter-optimum-value{filter:invert(1)}meter::-moz-meter-bar{filter:invert(1)}}/*# sourceMappingURL=explorerstyle.min.css.map */

Rule doesn't have all its properties in alphabetical order.
Open

body{margin:0;overflow:hidden;height:100vh;display:flex;flex-direction:column}body.big_buttons #headbar2{height:2.4rem}body.big_buttons #content_files a{width:72px}#headbar2{display:flex;position:relative;top:0;justify-content:space-between;background-color:#ddb;height:1.8em;width:100%;border-bottom:1px solid #999;overflow:visible;font-size:1em}#headbar2 form{display:flex;height:100%;position:relative}#headbar2 form input,#headbar2 form button{box-sizing:border-box}#headbar2 form input[type=text]{width:100%;height:100%;border-right:0;padding:0 10px}#headbar2 form button{width:auto;height:100%;border-left:0;padding:0}#headbar2 form button img{width:auto;height:100%}#headbar2 img,#headbar2 a{display:inline-block;position:relative;height:100%;margin:0;padding:0;box-sizing:border-box}#headbar2 a{padding:2px}#content_files{padding:15px;position:relative;overflow:scroll;overflow-x:hidden;width:100%;left:0;height:100%;box-sizing:border-box;display:flex;justify-content:start;align-content:start;flex-wrap:wrap}#content_files a{background-color:rgba(0,0,0,0);border:0;margin:4px;overflow:hidden;width:64px;height:auto;max-height:100px;z-index:10;top:0;left:0;float:left;text-align:center;align-content:start;-webkit-user-select:none;-moz-user-select:none;user-select:none;word-break:break-word;display:inline-block;position:relative;font-size:.85em;text-decoration:none;border-radius:var(--border-radius) !important}#content_files a:hover,#content_files a:focus-visible{overflow:visible;z-index:20}#content_files a.fattr-hidden{opacity:.7}#content_files a .color_dot_div{position:absolute;bottom:40px;left:50%;transform:translateX(-50%);border-radius:50px;line-height:0;width:80%;-webkit-user-select:none;-moz-user-select:none;user-select:none;pointer-events:none}#content_files a .color_dot_div .color_dot{width:12px;height:12px;border-radius:50%;border:1px solid rgba(119,119,119,.6);background-color:rgba(119,119,119,.6666666667);margin:1px;padding:0;display:inline-block;position:relative;background-repeat:no-repeat;top:0;right:0}#content_files a .color_dot_div .color_dot_A{background-color:red}#content_files a .color_dot_div .color_dot_B{background-color:orange}#content_files a .color_dot_div .color_dot_C{background-color:#ff0}#content_files a .color_dot_div .color_dot_D{background-color:green}#content_files a .color_dot_div .color_dot_E{background-color:blue}#content_files a .color_dot_div .color_dot_F{background-color:purple}#content_files a .color_dot_div .color_dot_0{background-image:url("../../../logo.png");background-size:100%;border-radius:25%}#content_files a .color_dot_div .color_dot_outdated{background-color:rgba(255,0,0,.6666666667);border-radius:25%;width:5px}#content_files a .color_dot_div .color_dot_outdated::after{content:"!";line-height:.8;display:table-cell}#content_files a img{position:relative;display:block;top:0;margin-top:2px;height:64px;max-height:150px;pointer-events:none;width:100%;overflow:hidden;-o-object-fit:contain;object-fit:contain;pointer-events:none;margin:0}#bottom_info{position:relative;width:100%;background:rgba(119,119,119,.2666666667);height:auto;max-height:40vh;overflow:hidden;position:relative;bottom:0;left:0;padding:20px;box-sizing:border-box;border-top:1px solid var(--themecolor);display:block}#bottom_info meter{width:290px;max-width:100%}#bottom_info div.icon{display:inline-block;float:left;margin-right:20px;transform:scale(1.5)}#spaceinfo{background:var(--black2);height:auto;overflow:hidden;width:100%;position:relative;bottom:0;left:0;padding:20px;box-sizing:border-box;border-top:1px solid var(--themecolor)}#spaceinfo meter{width:290px;max-width:100%}@media(prefers-color-scheme: light){#spaceinfo{background:var(--beige3)}}@media(prefers-color-scheme: dark){#headbar2{background:var(--black2);border:none}#headbar2 p{color:#fff}meter{filter:invert(1)}meter::-webkit-meter-optimum-value{filter:invert(1)}meter::-moz-meter-bar{filter:invert(1)}}/*# sourceMappingURL=explorerstyle.min.css.map */

Rule doesn't have all its properties in alphabetical order.
Open

html{padding:0;margin:0}html body{display:flex;flex-direction:column;height:100vh;width:100%;padding:0;margin:0;overflow:hidden}html body .toolbar{display:flex;flex-direction:row;justify-content:stretch;height:2.75rem;padding:.2rem}html body .toolbar #adressstuff{flex-grow:7;position:relative;display:flex;flex-direction:row;justify-content:stretch}html body .toolbar #adressstuff img{height:70%;top:15%;z-index:10;position:absolute;aspect-ratio:1/1;left:10px}@supports not (aspect-ratio: 1/1){html body .toolbar #adressstuff img{width:1.5rem;height:1.5rem}}html body .toolbar #adressstuff input{border:1px solid #000;border-radius:5px;padding:5px 5px 5px 40px;margin:0 .2rem;flex-grow:9;width:100%}html body .toolbar #adressstuff button{aspect-ratio:1/1}@supports not (aspect-ratio: 1/1){html body .toolbar #adressstuff button{width:2rem}}html body .toolbar button{border:1px solid #000;border-radius:5px;padding:1px;margin:0 .2rem;flex-grow:1;line-height:0}html body .toolbar #websitecontrols1{font-size:0;height:100%}html body .toolbar #websitecontrols1 #websitecontrols{display:inline}html body .toolbar #websitecontrols1 button{aspect-ratio:1/1;padding:0;font-size:1rem;height:100%}@supports not (aspect-ratio: 1/1){html body .toolbar #websitecontrols1 button{width:2rem}}html body .toolbar #websitecontrols1[disabled] button{opacity:.5}html body iframe{height:100%;width:100%;border:none}html body iframe#website{height:100%;width:100%}*{box-sizing:border-box}/*# sourceMappingURL=style.min.css.map */
Severity: Minor
Found in Program Files/browser/style.min.css by csslint

Unknown property 'aspect-ratio'.
Open

html{padding:0;margin:0}html body{display:flex;flex-direction:column;height:100vh;width:100%;padding:0;margin:0;overflow:hidden}html body .toolbar{display:flex;flex-direction:row;justify-content:stretch;height:2.75rem;padding:.2rem}html body .toolbar #adressstuff{flex-grow:7;position:relative;display:flex;flex-direction:row;justify-content:stretch}html body .toolbar #adressstuff img{height:70%;top:15%;z-index:10;position:absolute;aspect-ratio:1/1;left:10px}@supports not (aspect-ratio: 1/1){html body .toolbar #adressstuff img{width:1.5rem;height:1.5rem}}html body .toolbar #adressstuff input{border:1px solid #000;border-radius:5px;padding:5px 5px 5px 40px;margin:0 .2rem;flex-grow:9;width:100%}html body .toolbar #adressstuff button{aspect-ratio:1/1}@supports not (aspect-ratio: 1/1){html body .toolbar #adressstuff button{width:2rem}}html body .toolbar button{border:1px solid #000;border-radius:5px;padding:1px;margin:0 .2rem;flex-grow:1;line-height:0}html body .toolbar #websitecontrols1{font-size:0;height:100%}html body .toolbar #websitecontrols1 #websitecontrols{display:inline}html body .toolbar #websitecontrols1 button{aspect-ratio:1/1;padding:0;font-size:1rem;height:100%}@supports not (aspect-ratio: 1/1){html body .toolbar #websitecontrols1 button{width:2rem}}html body .toolbar #websitecontrols1[disabled] button{opacity:.5}html body iframe{height:100%;width:100%;border:none}html body iframe#website{height:100%;width:100%}*{box-sizing:border-box}/*# sourceMappingURL=style.min.css.map */
Severity: Minor
Found in Program Files/browser/style.min.css by csslint

Rule doesn't have all its properties in alphabetical order.
Open

:root{--color:#fff;--background-color:#000;--font:sans-serif}body,input{background-color:var(--background-color);padding:0 10px;box-sizing:border-box;width:100%;min-height:100vh}head,head *{display:none}*{margin:0;padding:0;line-height:1.2;display:block;height:auto;font-family:var(--font);font-size:16px;color:var(--color)}p,a,b,input,.cmdinputcontainer{font-size:18px}b{display:inline-block;font-weight:inherit}.helpb{display:block}.helpb b{color:#ff0}.helpb b b{color:#66f}.helpb b a{display:inline-block;color:#6f6}.helpb br{display:block;line-height:0}.cmdinputcontainer::before{content:"> ";position:absolute;left:0;padding:1px 10px;color:#ff0;display:inline !important;z-index:999}.cmdinputcontainer input{border:0;outline:0;position:relative;display:block;top:0;left:0;width:100%;height:auto;min-height:20px;padding:0 0 0 18px;border-left:5px solid var(--color);margin-left:-5px}.cmdinputcontainer input:focus{border-left-color:rgba(0,0,0,0)}/*# sourceMappingURL=style.min.css.map */
Severity: Minor
Found in Program Files/cmd/style.min.css by csslint

Don't use IDs in selectors.
Open

#imgs div {
Severity: Minor
Found in Program Files/colors/imgstyle.css by csslint

Don't use IDs in selectors.
Open

#imgs div:hover::before {
Severity: Minor
Found in Program Files/colors/imgstyle.css by csslint

Don't use IDs in selectors.
Open

#imgs div:active {
Severity: Minor
Found in Program Files/colors/imgstyle.css by csslint

Rule doesn't have all its properties in alphabetical order.
Open

#colorselect button {

Using height with border can sometimes make elements larger than you expect.
Open

  border: 2px solid #000;

Don't use IDs in selectors.
Open

#orange {

Rule doesn't have all its properties in alphabetical order.
Open

*{box-sizing:border-box}html,body,.content{margin:0;padding:0;height:100%;box-sizing:border-box}.calculator{height:100%;display:flex;flex-direction:column;flex-wrap:nowrap}.calculator .result #result{width:100%;height:100%;font-size:2rem;text-align:right;border:0;border-bottom:2px solid var(--themecolor);padding-left:.5rem;padding-right:.5rem;-webkit-tap-highlight-color:rgba(0,0,0,0)}.calculator .result #result:hover,.calculator .result #result:focus,.calculator .result #result:active{background-color:unset}.calculator .expression #expression{width:100%;height:100%;font-size:1rem;text-align:right;border:0;padding-left:.5rem;padding-right:.5rem}.calculator .buttons{width:100%;height:100%;display:grid;grid-template-columns:repeat(5, 1fr);grid-template-rows:repeat(4, 1fr);grid-gap:1px;padding-top:2px}.calculator .buttons button{width:100%;height:100%;font-size:1.75rem;font-weight:bold;box-sizing:border-box;border:.01em solid #000;background-color:var(--themecolor);color:var(--textcolor)}.calculator .buttons button:hover{background-color:var(--hovercolor) !important;color:var(--textcolor);filter:none !important}.calculator .buttons button.n{background-color:var(--themecolor);color:var(--textcolor)}.calculator .buttons button.c{background-color:red;color:#000}.calculator .buttons button.b{filter:hue-rotate(40deg)}.calculator .buttons button.o{filter:brightness(1.3)}.calculator .buttons button.e{filter:invert(0.2)}.calculator .buttons button.backspace{background-color:#f33;filter:grayscale(0.3)}.calculator .buttons button.decimal{filter:brightness(0.8)}/*# sourceMappingURL=style.min.css.map */

Don't use IDs in selectors.
Open

*{box-sizing:border-box}html,body,.content{margin:0;padding:0;height:100%;box-sizing:border-box}.calculator{height:100%;display:flex;flex-direction:column;flex-wrap:nowrap}.calculator .result #result{width:100%;height:100%;font-size:2rem;text-align:right;border:0;border-bottom:2px solid var(--themecolor);padding-left:.5rem;padding-right:.5rem;-webkit-tap-highlight-color:rgba(0,0,0,0)}.calculator .result #result:hover,.calculator .result #result:focus,.calculator .result #result:active{background-color:unset}.calculator .expression #expression{width:100%;height:100%;font-size:1rem;text-align:right;border:0;padding-left:.5rem;padding-right:.5rem}.calculator .buttons{width:100%;height:100%;display:grid;grid-template-columns:repeat(5, 1fr);grid-template-rows:repeat(4, 1fr);grid-gap:1px;padding-top:2px}.calculator .buttons button{width:100%;height:100%;font-size:1.75rem;font-weight:bold;box-sizing:border-box;border:.01em solid #000;background-color:var(--themecolor);color:var(--textcolor)}.calculator .buttons button:hover{background-color:var(--hovercolor) !important;color:var(--textcolor);filter:none !important}.calculator .buttons button.n{background-color:var(--themecolor);color:var(--textcolor)}.calculator .buttons button.c{background-color:red;color:#000}.calculator .buttons button.b{filter:hue-rotate(40deg)}.calculator .buttons button.o{filter:brightness(1.3)}.calculator .buttons button.e{filter:invert(0.2)}.calculator .buttons button.backspace{background-color:#f33;filter:grayscale(0.3)}.calculator .buttons button.decimal{filter:brightness(0.8)}/*# sourceMappingURL=style.min.css.map */

Using width with padding-left can sometimes make elements larger than you expect.
Open

*{box-sizing:border-box}html,body,.content{margin:0;padding:0;height:100%;box-sizing:border-box}.calculator{height:100%;display:flex;flex-direction:column;flex-wrap:nowrap}.calculator .result #result{width:100%;height:100%;font-size:2rem;text-align:right;border:0;border-bottom:2px solid var(--themecolor);padding-left:.5rem;padding-right:.5rem;-webkit-tap-highlight-color:rgba(0,0,0,0)}.calculator .result #result:hover,.calculator .result #result:focus,.calculator .result #result:active{background-color:unset}.calculator .expression #expression{width:100%;height:100%;font-size:1rem;text-align:right;border:0;padding-left:.5rem;padding-right:.5rem}.calculator .buttons{width:100%;height:100%;display:grid;grid-template-columns:repeat(5, 1fr);grid-template-rows:repeat(4, 1fr);grid-gap:1px;padding-top:2px}.calculator .buttons button{width:100%;height:100%;font-size:1.75rem;font-weight:bold;box-sizing:border-box;border:.01em solid #000;background-color:var(--themecolor);color:var(--textcolor)}.calculator .buttons button:hover{background-color:var(--hovercolor) !important;color:var(--textcolor);filter:none !important}.calculator .buttons button.n{background-color:var(--themecolor);color:var(--textcolor)}.calculator .buttons button.c{background-color:red;color:#000}.calculator .buttons button.b{filter:hue-rotate(40deg)}.calculator .buttons button.o{filter:brightness(1.3)}.calculator .buttons button.e{filter:invert(0.2)}.calculator .buttons button.backspace{background-color:#f33;filter:grayscale(0.3)}.calculator .buttons button.decimal{filter:brightness(0.8)}/*# sourceMappingURL=style.min.css.map */

The box-sizing property isn't supported in IE6 and IE7.
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*{box-sizing:border-box}html,body,.content{margin:0;padding:0;height:100%;box-sizing:border-box}.calculator{height:100%;display:flex;flex-direction:column;flex-wrap:nowrap}.calculator .result #result{width:100%;height:100%;font-size:2rem;text-align:right;border:0;border-bottom:2px solid var(--themecolor);padding-left:.5rem;padding-right:.5rem;-webkit-tap-highlight-color:rgba(0,0,0,0)}.calculator .result #result:hover,.calculator .result #result:focus,.calculator .result #result:active{background-color:unset}.calculator .expression #expression{width:100%;height:100%;font-size:1rem;text-align:right;border:0;padding-left:.5rem;padding-right:.5rem}.calculator .buttons{width:100%;height:100%;display:grid;grid-template-columns:repeat(5, 1fr);grid-template-rows:repeat(4, 1fr);grid-gap:1px;padding-top:2px}.calculator .buttons button{width:100%;height:100%;font-size:1.75rem;font-weight:bold;box-sizing:border-box;border:.01em solid #000;background-color:var(--themecolor);color:var(--textcolor)}.calculator .buttons button:hover{background-color:var(--hovercolor) !important;color:var(--textcolor);filter:none !important}.calculator .buttons button.n{background-color:var(--themecolor);color:var(--textcolor)}.calculator .buttons button.c{background-color:red;color:#000}.calculator .buttons button.b{filter:hue-rotate(40deg)}.calculator .buttons button.o{filter:brightness(1.3)}.calculator .buttons button.e{filter:invert(0.2)}.calculator .buttons button.backspace{background-color:#f33;filter:grayscale(0.3)}.calculator .buttons button.decimal{filter:brightness(0.8)}/*# sourceMappingURL=style.min.css.map */

Rule doesn't have all its properties in alphabetical order.
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*{transition:.2s;font-size:1em}#gridcontainercontainer{display:flex;justify-content:center;align-items:center}#gridcontainer{display:inline-grid;width:100%;overflow:hidden;grid-template-columns:repeat(7, 1fr);box-sizing:border-box}#gridcontainer .cell{transition:0s;overflow:hidden;text-align:left;background-color:#fff;width:100%;line-height:1.25em;height:1.25em;padding:0;overflow:hidden;border:0px solid rgba(0,0,0,0) !important;outline:.5px solid rgba(119,119,119,.6666666667);resize:none;border-radius:0;box-sizing:border-box;-webkit-appearance:none;-moz-appearance:none;appearance:none}#gridcontainer .cell:hover{cursor:cell;background-color:var(--hovercolor)}#gridcontainer .cell:focus{cursor:text;background-color:var(--hovercolor)}@media(prefers-color-scheme: dark){body #gridcontainer .cell{background-color:var(--black)}}/*# sourceMappingURL=gridstyle.min.css.map */

Expected (<color>) but found 'var(--themecolor)'.</color>
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  background-color:var(--themecolor);
Severity: Minor
Found in Program Files/hype/style.css by csslint
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