ami.js/examples/viewers_upload/viewers_upload.css

<p align="center"> <img src="https://cloud.githubusercontent.com/assets/214063/23213764/78ade038-f90c-11e6-8208-4fcade5f3832.png" width="60%"> </p>

*{
  font-family: 'Roboto', sans-serif;
  outline: none;
}


#viewer, #r3d, #orientation {
  background-color: #212121;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  position: absolute;
  width: 100%;
  height: 100%;
  overflow:hidden;
}

#orientation {
  display: flex;
  align-items: center;
  justify-content: center;

}

.direction {
  z-index: 1;
  color: #fff;
  text-transform: uppercase;
  font-size: 16px;
  position: absolute;
  margin: 14px;
  padding: 4px;
  border-radius: 50%;
  width: 18px;
  height: 18px;
  text-align: center;
  background-color: rgba(0, 0, 0, .3);
}

#top {
  top: 24px;
}

#bottom {
  bottom: 0;
}

#left {
  left: 0;
}

#right {
  right: 0;
}

#my-gui-container {
  position: fixed;
  top: 30px;
  right: 20px;
  z-index:1;
}

#my-lut-container {
  position: fixed;
  left: 50%;
  transform: translate(-50%, 0);
  z-index: 1;
  color: #F9F9F9;
  display: flex;
}

#my-lut-container > #my-lut-canvases {
  position: relative;
}

#my-lut-min {
  margin-right: 10px;
}

#my-lut-max {
  margin-left: 10px;
}

#my-lut-container > #my-lut-canvases > :first-child {
  background: repeating-linear-gradient(-45deg, #353535, #353535 5px, black 5px, black 10px);
}

#my-lut-container > #my-lut-canvases > :nth-child(2) {
  position: absolute;
  top: 0;
  left: 0;
}

#home-container{
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background-color: #212121;
  z-index: 99;
  align-items: center;
  display: flex;
  flex-direction: column;
}

.big{
  font-size:60px;
}

.medium{
  font-size:40px;
}

.small{
  font-size:30px;
}

.small{
  font-size:20px;
}

#buttons{
  flex: 1;
  align-items: center;
  display: flex;
  flex-direction: column;
  justify-content:center;
}

#filesinput{
  display:none;
}

#buttoninput{
  padding: 10px;
  border: 6px solid #2196F3;
  background-color: #2196F3;
  color: #F9F9F9;
  border-radius: 50%;
  height: 200px;
  width: 200px;
  font-size:30px;
}

#buttoninput:hover{
  /*border-style: dashed;*/
  background-color: #F9F9F9;
  color: #2196F3;
  cursor:pointer;
}