*
{
  margin: 0;
  padding: 0;
}
.container
{
  width: 100%;
  height: 100vh;
  font-family: sans-serif;
  background: rgba(187,187,245);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
}
.card
{
  width: 400px;
  height: 600px;
  box-shadow: 0 0 40px 20px rgba(0,0,0,0.26);
  perspective: 1000px;
}
.inner-box{
  position: relative;
  width: 100%;
  height: 100%;
  transform-style: preserve-3d;
  transition: transform 1s;
}
.card-front, .card-back{
  position: absolute;
  width: 100%;
  height: 100%;
  background-position: center;
  background-size: cover;
  background-image: linear-gradient(rgba(0,0,100,0.8),rgba(0,0,100,0.8)),url(../images/shoe.jpg);
  padding: 55px;
  box-sizing: border-box;
  backface-visibility: hidden;
}
.card-back{
  transform: rotateY(180deg);
}
.card h2{
  font-weight: normal;
  font-size: 24px;
  text-align: center;
  margin-bottom: 20px;
}
.input-box{
  width: 100%;
  background: transparent;
  border: 1px solid #fff;
  margin: 6px 0;
  height: 32px;
  border-radius: 20px;
  padding: 0 10px;
  box-sizing: border-box;
  outline: none;
  text-align: center;
  color: #fff;
}
::placeholder{
  color: #fff;
  font-size: 12px;
}
button{
  width: 100%;
  background: transparent;
  border: 1px solid #fff;
  margin: 35px 0 10px;
  height: 32px;
  font-size: 12px;
  border-radius: 20px;
  padding: 0 10px;
  box-sizing: border-box;
  outline: none;
  color: #fff;
  cursor: pointer;
}
.submit-btn{
  position: relative;
}
.submit-btn::after{
  content: '\27a4';
  color: #333;
  line-height: 32px;
  font-size: 17px;
  height: 32px;
  width: 32px;
  border-radius: 50%;
  background: #fff;
  position: absolute;
  right: -1px;
  top: -1px;
}
span{
  font-size: 13px;
  margin-left: 10px;
}
.card .btn{
  margin-top: 60px;
}
.card a{
  color: #fff;
  text-decoration: none;
  display: block;
  text-align: center;
  font-size: 13px;
  margin-top: 8px;
  
}