app/assets/stylesheets/_common.css.scss

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@charset "UTF-8";
@import url("https://fonts.googleapis.com/css?family=Ubuntu:400,700");

/* reset */
html,body,div,h1,h2,h3,h4,h5,h6,p,blockquote,q,pre,table,caption,colgroup,col,tbody,thead,tfoot,tr,th,td,ul,ol,li,dl,dt,dd,form,fieldset,legend,label,span,a,img,em,ins,del,cite,abbr,sup,sub,dfn,code,var,samp,kbd,object,script,noscript,style,iframe,embed,param,map,area,menu,hr,address,small,strong,i,b,article,aside,figure,footer,header,hgroup,nav,section,figcaption,time,video,audio,mark,ruby,rt,rp,bdo,source,canvas,details,summary,command,datalist,keygen,output,progress,meter { margin: 0; padding: 0; font-size: 100%; }
address,article,aside,figure,figcaption,footer,header,hgroup,hr,legend,menu,nav,section,summary { display: block; }
li { list-style-type: none; }
a img { border: none; }
img { vertical-align: bottom; }
object,object:focus { outline:none; }

input[type='button'],
input[type='submit'] {
  padding: 0;
}

/* common class */
.hidden { display: none; }
.half { -ms-filter: "alpha(opacity=50)"; filter: alpha( opacity=50 ); opacity: 0.5; }
.clear { zoom: 1; }
.clear:after { content: ""; display: block; clear: both; }
.user_icon { position: absolute; right: 0; top: 0; }