html {
    height: 100%;
  }
  body {
    margin:0;
    padding:0;
    font-family: sans-serif;
    background-image:linear-gradient(rgba(0,0,0,0.75), rgba(0,0,0,0.4)), url(background.jpg);
    background-size: cover;
    background-position: center;
  }
  .navbar{
    width: 95%;
    margin-left: 50px;
    margin-right: 20px;
    padding: 35px 0 0 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.logo{
    width: 160px;
}
.navbar ul li{
    list-style: none;
    display: inline-block;
    margin: 0 20px;
    position: relative;
}
.navbar ul li a{
    text-decoration: none;
    color: aliceblue;
}
.navbar ul li::after{
    content: '';
    height: 3px;
    width: 0;
    background: #009688;
    position: absolute;
    left: 0;
    bottom: -10px;
    transition: 0.5s;
}
.navbar ul li:hover::after{
    width: 100%;
}
  
  .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; */
    text-align: center;
  }
  
  .login-box h2 {
    margin: 0 0 30px;
    padding: 0;
    color: #fff;
    text-align: center;
    font-size: 40px;
  }
  
  .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: .5s;
  }
  
  .login-box .user-box input:focus ~ label,
  .login-box .user-box input:valid ~ label {
    top: -20px;
    left: 0;
    color: #009688;
    font-size: 12px;
  }
  
  button{
    width: 200px;
    padding: 15px 0;
    text-align: center;
    margin: 50px 10px 0px 10px;
    border-radius: 25px;
    font-weight: bold;
    border: 2px solid #009688;
    background: transparent;
    color: aliceblue;
    cursor: pointer;
    position: relative;
    overflow: hiddens;
}
span{
    background: #009688;
    height: 100%;
    width: 0;
    border-radius: 25px;
    position: absolute;
    left: 0;
    bottom: 0;
    z-index: -1;
    transition: 0.5s;
}
button:hover span{
    width: 100%;
}
button:hover{
    border: none;
}
.login-box .user-box input:-webkit-autofill{
  box-shadow: 0 0 0 30px #001410 inset;
  border: none;
  -webkit-text-fill-color: #fff;
}
.login-box .user-box input:-webkit-autofill:focus{
  -webkit-box-shadow: 0 0 0 30px #001410 inset;
  -webkit-text-fill-color: #fff;
  -webkit-border-image: none;
}
.btn1{
  width: 200px;
    padding: 15px 0;
    text-align: center;
    margin: 50px 10px;
    border-radius: 25px;
    font-weight: bold;
    border: 2px solid rgb(249, 4, 4);
    background: transparent;
    color: aliceblue;
    cursor: pointer;
    position: relative;
    overflow: hidden;
}
.btn1 span{
  background: rgb(249, 4, 4);
    height: 100%;
    width: 0;
    border-radius: 25px;
    position: absolute;
    left: 0;
    bottom: 0;
    z-index: -1;
    transition: 0.5s;
}