html {
    height: 100%;
  }
  body {
    margin:0;
    padding:0;
    color:white;
    font-family: sans-serif;
    background: linear-gradient(#022b3a, #115363);
    
    height: 100vh;
    /* background-image: linear-gradient(rgba(0, 0, 0, 0.85),
                       rgba(0, 0, 0, 0.85)), url("https://media.istockphoto.com/vectors/specialpurpose-trucks-special-service-vehicles-vector-id1197777514?k=20&m=1197777514&s=612x612&w=0&h=BR3cBQVKRHZzMSL7v9iijd3wjBYsWBhZ0IZBZgthGAE=");
    background-repeat: repeat; */

}
  
  .login-box {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 400px;
    padding: 40px;
    transform: translate(-50%, -50%);
    background: rgba(0,0,0,.5);
    box-sizing: border-box;
    box-shadow: 0 15px 25px rgba(0,0,0,.6);
    border-radius: 10px;
  }
  
  .login-box h2 {
    margin: 0 0 30px;
    padding: 0;
    color: #fff;
    text-align: center;
  }
  
  .login-box .user-box {
    position: relative;
  }
  
  .login-box .user-box input {
    width: 100%;
    padding: 10px 0;
    font-size: 16px;
    color: #fff;
    margin-bottom: 30px;
    border: none;
    border-bottom: 1px solid #fff;
    outline: none;
    background: transparent;
  }
  .login-box .user-box label {
    position: absolute;
    top:0;
    left: 0;
    padding: 10px 0;
    font-size: 16px;
    color: #fff;
    pointer-events: none;
    transition: .3s;
  }
  
  .login-box .user-box input:focus ~ label,
  .login-box .user-box input:valid ~ label {
    top: -20px;
    left: 0;
    color: #1f7a8c;
    font-size: 12px;
  }
  
  .login-box form .submitbtn {
    position: relative;
    display: inline-block;
    padding: 10px 20px;
    color: #1f7a8c;
    font-size: 16px;
    text-decoration: none;
    text-transform: uppercase;
    overflow: hidden;
    transition: .3s;
    margin-top: 40px;
    letter-spacing: 4px
  }
  
  .login-box .submitbtn:hover {
    background: #1f7a8c;
    color: #fff;
    border-radius: 5px;
  }