index.css

label{
  font-size: 30px;
  margin-bottom: 40px;
}

input{
  font-size: 25px;
}
body {
  perspective: 5000px
}

.btn{
  font-size: 25px;
  background-color: blue;
  color: white;
}

.btn:hover{
  background-color: black;
}

.form-container{
  opacity: 0;
  position: absolute;
  text-align: center;
  margin: 0;
  padding: 20px;
  background: teal;
  width: 590px;
  left: 50%;
  margin-left: -295px;
  transition: opacity .25s, transform .25s;
  transform: rotateX(90deg) translateY(-220px) translateZ(219px);
}
.form-container.js-showing {
  opacity: 1;
  transform: none;
}

.padding-class{
  margin: 20px;
}

.edit-planets {
  position: fixed;
  background: transparent;
  font-size: 81px;
  border: 0px;
  right: 0;
  top: 0;
  padding: 0px 20px;
  color: #ff22ffaa;
}