*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: sans-serif;
  }
  body{
    background-color: aliceblue;
    background-position: center;
    background-size: cover;
  }
  .container{
    width:360px;
    height: 480px;
    margin:8% auto;
    background:#fff;
    border-radius: 5px;
    position: relative;
    overflow: hidden;
  }
  h3{
    text-align: center;
    text-transform: uppercase;
    margin-bottom: 40px;
    color: #777;
  }
  .container .tab{
    width: 280px;
    position: absolute;
    top: 100px;
    left: 40px;
    transition: 0.5s;
  }
  .tab{
    display: flex;
    flex-direction: column;
  }
  .tab input{
    width: 100%;
    padding: 10px 5px;
    margin: 5px 0;
    border: 0;
    border-bottom: 1px solid #999;
    outline: none;
    background: transparent;
  }
  ::placeholder{
    color: #999;
    text-transform: capitalize;
  }
  .btn-box{
    display: flex;
    width: 100%;
    margin: 30px auto;
    text-align: center;
  }
  .tab button{
    width: 110%;
    height: 35px;
    margin: 0 10px;
    background: linear-gradient(to right, #ff105f, #ffad06);
    border-radius: 30px;
    border: 0;
    color: #fff;
    cursor: pointer;
  }
  a{
    text-decoration: none;
  }
  #form2{
    left: 450px;
  }
  #form3{
    left: 450px;
  }
  .step-row{
    width: 360px;
    height: 40px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    box-shadow: 0 -1px 5px -1px #000;
    position: relative;
  }
  .step-col{
    width: 120px;
    text-align: center;
    color: #333;
    position: relative;
  }
  #progress{
    position: absolute;
    height: 100%;
    width: 120px;
    background: linear-gradient(to right, #ff105f, #ffad06);
    transition: 1s;
  }
  #progress::after{
    content: '';
    height: 0;
    width: 0;
    border-top: 20px solid transparent;
    border-bottom: 20px solid transparent;
    position: absolute;
    right: -20px;
    top: 0;
    border-left: 20px solid#ffad06;
  }
  @media screen and (max-width: 768px) {
    .container{
      width:270px;
      height: 480px;
      margin:8% auto;
      background:#fff;
      border-radius: 5px;
      position: relative;
      overflow: hidden;
    }
    .container .tab{
      width: 230px;
      position: absolute;
      top: 100px;
      left: 20px;
      transition: 0.5s;
    }
    .tab input{
      width: 100%;
      padding: 10px 5px;
      margin: 5px 0;
      border: 0;
      border-bottom: 1px solid #999;
      outline: none;
      background: transparent;
    }
    .step-row{
      width: 270px;
      height: 40px;
      margin: 0 auto;
      display: flex;
      align-items: center;
      box-shadow: 0 -1px 5px -1px #000;
      position: relative;
    }
    .step-col{
      width: 90px;
      text-align: center;
      color: #333;
      position: relative;
    }
    #progress{
      position: absolute;
      height: 100%;
      width: 90px;
      background: linear-gradient(to right, #ff105f, #ffad06);
      transition: 1s;
    }
  }