app/assets/stylesheets/lib/mod-fileuploader.css.scss
.mod-fileuploader-box {
margin: 10px;
padding: 10px;
border: dotted 5px #AFEEEE;
background: #F0FFFF;
}
#mod-fileuploader-notify {
opacity:0.5;
margin: 20px;
padding-top: 40%;
font-size: 40px;
text-align: center;
display: none;
width: 100%;
height: 100%;
background: #1E90FF;
color: white;
position: absolute;
top: 0;
left: 0;
}