code.css

* {
    margin:0px;
    padding:0px;
    box-sizing: border-box;
    font-family: verdana;
}

body {
    background: #262a2f;
}

.container {
    background-color: white;
    width:400px;
    padding:25px 35px;
    position: absolute;
    top:50%;
    left:50%;
    transform:translate(-50%, -50%);
    border-radius: 10px;
    box-shadow: 
    
    0 0 14px white,
    0 0 35px white,
    0 0 50px white;
    border:1px solid rgba(0,0,0,0.5);
}

.container p {
    font-weight: 600;
    font-size: 15px;
    margin-bottom: 8px;
}

.container input{
    width:100%;
    height:50px;
    border:1px solid #494eea;
    outline:0;
    padding: 10px;
    margin:10px 0 20px;
    border-radius: 5px;

}

.container button {
    background-color:#494eea;
    width:100%;
    height:50px;
    color:white;
    border:0;
    outline:0;
    border-radius: 5px;
    box-shadow: 0 10px 10px rgba(0, 0, 0, 0.1);
    cursor:pointer;
    margin:20px 0;
    font-weight: 500;

}


#imgBox {
    width:200px;
    max-height: 0;
    border-radius: 5px;
    overflow:hidden;
    transition: max-height 1s;
}

#imgBox img {
    width:100%;
    padding:10px;

}

#imgBox.show-img {
    max-height: 300px;
    margin:10px auto;
    border:1px solid black;
}

.error {
    animation: shake 0.1s linear 10;
    
}
  @keyframes shake {
    0%{
        transform: translateX(0);
    }
    25%{
        transform: translateX(-2px);
    }
    50%{
        transform: translateX(0);
    }
    75%{
        transform: translateX(2px);
    }
    100%{
        transform: translateX(0);
    }
}