.container
{
    background-color: rgba(99, 60, 6, 0.37);
    align-items: center;
    display: flex;
    width: 900px;
    height: 500px;
    margin: 50px;
    padding: 50px;
}
.form{
    background-color: rgba(187, 184, 176, 0.432);
    width: 900px;
    height: 500px;  
    margin: auto;
}
.user{
    
    margin-bottom: 10px;
    height: 25px;
    margin-top: 20px;
   
}
.btn{
    margin-top: 5px;
}
body{
    background: linear-gradient(rgba(0,0,0,0.5),rgba(0,0,0,0.5)),url('../img/Cat Ball.png');
    background-size: cover;
    display: flex;
    justify-content: center;
    align-items: center;
    background-repeat: no-repeat;
    background-position: center;
}
h1{
    margin-top: 5px;
    padding: 30px;
}


.vvv{
    line-height: 10px;
}
.ass{
    margin-left: 10px;
}
.error-message {
    color: red;
    display: none;
}
input:invalid + .error-message {
    display: block;
}
@media (max-width: 450px) {
    body{
    width: 40vh;
    height:100vh;
    
    }

    .container {
        width: 65%;
        padding: 30px;
    }

    .form {
        width: 350px;
        height: auto;
    }
}