body{
    margin: 0px;
    padding: 0px;
    background: url(back2.jpg);
    background-repeat: no-repeat;
    background-size: cover;
    background-position:top center;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
}
.parent_container
{
    height: 50vh;
    width: 50vw;
    background:linear-gradient(to right,#00695C,white);
    text-align: center;
    border-radius: 70%;
    padding-top: 50px;
    border: 3px solid antiquewhite;
    padding: 50px;
   
    
    
}
input {
    height: 40px;
    padding: 0 10px;
    font-size: 16px;
    border: 2px solid #ccc;
    border-radius: 8px;
    width: 40%;
}
#btn
{
    height: 40px;
    padding: 0 10px;
    font-size: 18px;
    width: 16%;
    border:2px solid white ;
    border-radius: 5px;
    color: white;
    background-color: #00695C;
}

.fail{
    background-color: red;
    width: 300px;
    margin-left: 200px;
    height: 20px;
    padding: 3px;
    border-radius: 8px;
}
.pass{
    background-color: #4CAF50;
    color: white;
    width: 300px;
    margin-left: 200px;
    height: 20px;
    padding: 3px;
    border-radius: 8px;
}
.d-none
{
    display: none;
}