popup.css

body{
    width: 415px;
    height:415px;
    background-color: #323232;
    color: white;
}
@import url('https://fonts.googleapis.com/css?family=Raleway:300,400');
.button {
  display: inline-flex;
  height: 40px;
  width: 30%;
  border: 2px solid #BFC0C0;
  margin: 20px;
  color: #BFC0C0;
  text-transform: uppercase;
  text-decoration: none;
  font-size: .8em;
  letter-spacing: 1.5px;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
#arrow-hover {
  width: 15px;
  height: 10px;
  position: absolute;
  transform: translateX(60px);
  opacity: 0;
  -webkit-transition: all .25s cubic-bezier(.14, .59, 1, 1.01);
  transition: all .15s cubic-bezier(.14, .59, 1, 1.01);
  margin: 0;
  padding: 0 5px;
}

a#button-1:hover img {
  width: 15px;
  opacity: 1;
  transform: translateX(80px);
}
.switch {
  display: inline-block;
  height: 34px;
  position: relative;
  width: 70px;
}

.switch input {
  display:none;
}

.slider {
  background-color: #ff0000;
  bottom: 0;
  cursor: pointer;
  left: 0;
  position: absolute;
  right: 0;
  top: 0;
  transition: .4s;
}

.slider:before {
  background-color: #fff;
  bottom: 4px;
  content: "";
  height: 26px;
  left: 4px;
  position: absolute;
  transition: .4s;
  width: 26px;
}

input:checked + .slider {
  background-color: #66bb6a;
}

input:checked + .slider:before {
  transform: translateX(36px);
}

.slider.round {
  border-radius: 34px;
}

.slider.round:before {
  border-radius: 50%;
}