style.css

*{
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

.container{
    min-height: 100vh;
    width: 100%;
    background-color: rgb(18, 18, 61);
    padding: 5rem 2rem 2rem 1rem;
}

.card{
    background-color: white;
    max-width: 600px;
    width: 100%;
    margin: 0 auto;
    padding: 2rem;
    border-radius: 1rem;
}

h1{
    margin-bottom: 10px;
    font-size: 40px;
    font-weight: 600;
}

hr{
   height: 1px;
   background-color: rgb(18, 18, 61);
   border: none;
   outline:none;
}

h2{
    margin: 12px 0 9px;
}

.options button{
    color: #222;
     padding: 10px;
     width: 100%;
     text-align: left;    
     margin: 8px 0;
     cursor: pointer;
     border-radius: 4px;
     font-weight: 500;
}

.options button:hover:not([disabled]){
    background:linear-gradient(90deg,rgb(34, 29, 29),white);
    color:#fff;
}

.options button:hover:disabled{
    cursor:no-drop;
}

.next{
    padding: 10px 60px;
    background:linear-gradient(90deg,rgb(18, 18, 52),rgb(74, 81, 225));
    color:white;
    border-radius: 5px;
    cursor: pointer;
    font-size: 18px;
    border: none;

    /* Centering the Next Button */
    margin: 20px auto 0;
}

.correct{
  background:linear-gradient(90deg,#6fb564,white);
}

.incorrect{
    background:linear-gradient(9deg,#af6464,white);
}