style.css

body{
    margin: 0;
    padding: 0;
    font-family: sans-serif;
  }
  .login-box{
    width: 280px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
    color: rgb(0, 0, 0);
  }
  .login-box h1{
    float: left;
    font-size: 40px;
    border-bottom: 6px solid #4caf50;
    margin-bottom: 40px;
    padding: 13px 0;
  }
  .login-box h2{
    padding: 16px 0;
    border-bottom: 3px solid #4caf50;
  }
  .label option{
    color:black;
    font-family: sans-serif;
    font-weight: bold;
    margin-top: 40px;
  }  
  .textbox{
    width: 100%;
    overflow: hidden;
    font-size: 20px;
    padding: 8px 0;
    margin: 8px 0;
    border-bottom: 1px solid #4caf50;
  }
  .textbox i{
    width: 26px;
    float: left;
    text-align: center;
  }
  .textbox input{
    border: none;
    outline: none;
    background: none;
    color: black;
    font-size: 18px;
    width: 80%;
    float: left;
    margin: 0 10px;
  }
  .textbox textarea{
    border: none;
    outline: none;
    font-family: sans-serif;
    font-size: 18px;
    width: 80%;
    float: left;
    color: black;
    margin: 0 10px;
  }
  .btn{
    width: 100%;
    background: #adffb0;
    border: 2px solid #4caf50;
    border-radius: 30px;
    color: black;
    padding: 5px;
    font-size: 18px;
    cursor: pointer;
    margin: 12px 0;
    box-shadow: 4px 4px 5px grey;
  }
  .btn:hover{
    background: #4caf50;
  }
  .footer{
      background-color: black;
      color: white;
      font-family: sans-serif;
      text-align: center;
      border-radius: 30px;
      padding: 3px;
      box-shadow: 3px 3px 5px grey;
  }
  .footer a{
      color: pink;
      cursor: pointer;
      font-family: Arial, Helvetica, sans-serif;
  }
  .footer:hover{
      color: yellow;
  }