style.css

header {
  padding: 1.5rem 0;
}
body.auth-false .auth-false {
  display: block;
}
body.auth-false .auth-true {
  display: none;
}
body.auth-true .auth-false {
  display: none;
}
body.auth-true .auth-true {
  display: block;
}
[file-drop] {
  position: relative;
  border: 1px solid transparent;
}
.img-preview > div,
[file-drop-preview] div {
  display: inline-block;
  position: relative;
}
.img-preview img,
[file-drop-preview] img {
  max-width: 100px;
  max-height: 100px;
  width: auto;
  height: auto;
}
.img-preview > div,
[file-drop-preview] > div {
  margin: 0.25em;
}
.img-preview > div:after,
[file-drop-preview] > div:after {
  content: 'Click to remove!';
  background: linear-gradient(to bottom, transparent, rgba(0,0,0,0.9));
  color: #fff;
  padding: 0.5em;
  width: 100%;
  bottom: 0;
  left: 0;
  position: absolute;
  font-size: 0.65em;
}
.img-preview > div:hover:before,
[file-drop-preview] > div:hover:before {
  opacity: 0.7;
  transform: translateX(-50%) translateY(-50%) scale(1);
}
.img-preview > div:before,
[file-drop-preview] > div:before {
  transition: all ease 250ms;
  font-size: 1.6em;
  content: '❌';
  background: rgba(0,0,0,0.9);
  color: #fff;
  top: 50%;
  left: 50%;
  transform: translateX(-50%) translateY(-50%) scale(0.001);
  position: absolute;
  border-radius: 50%;
  width: 50px;
  height: 50px;
  text-align: center;
  line-height: 55px;
  opacity: 0;
}
.solid-border:after {
  border: 1px dashed #aaa;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.8);
  content: 'Drop Files Here!';
  text-align: center;
  line-height: 100%;
}