*{
    margin:0;
    padding:0;
    font-family: "Poppins",sans-serif;
    box-sizing: border-box;
}

body{
    background-color: #001e4d;

}

.app{
    background:white;
    width:90%;
    max-width:600px;
    margin: 100px auto 0;
    border-radius: 10px;
    padding:30px;
}
.app h1{
    font-size:25px;
    color:#001e4d;
    font-weight:600;
    border-bottom:1px solid #333;
    padding-bottom: 30px;

}

.quiz{
    padding: 20px 0;
}

.quiz h2{
    font-size:18px;
    color:#001e4d;
    font-weight:600;

}

.btn{
    background:#fff;
    color:#222;
    font-weight:500;
    width:100%;
    border:1px solid #222;
    padding:10px ;
    margin:10px 0;
    text-align: left;
    border-radius:4px;
    cursor:pointer;

}

.btn:hover:not([disabled]){
    background:#222;
    color:#fff;
}

.btn:disabled{
    cursor:no-drop;
}
#next-btn{
    background:#001e4d;
    color:#fff;
    font-weight:500;
    width:150px;
    border:0;
    cursor:pointer;
    border-radius:4px;
    padding:10px;
    margin:20px auto 0;
    display:none;

}

.correct {
    background-color: #9aeabc;
}

.incorrect {
    background-color: #ff9393;
}