style.css

*{
    box-sizing: border-box;
    margin-bottom: 20px;
}

body{
    background-color: rgb(248, 251, 252);
    margin: 4vw 9vw;
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
}

h1{
    font-size: 2.8rem;
    color: rgb(243, 9, 138);
    margin-bottom: 6vh;
    text-shadow: 2px 2px 8px #f576bcc9;
}

input{
    outline: none;
    border: none;
    background-color: aliceblue;
    border-bottom: 2px solid rgb(70, 2, 133);
    margin: 15px;
    font-size: 1.45rem;
    color: rgb(247, 15, 15);
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
}

button{
    font-size: 1.4rem;
    background-color: rgb(241, 241, 35);
    color: rgb(211, 2, 2);
    border-radius: 5px;
    padding: 10px 25px;
    font-weight: 600;
    border: none;
    margin: 25px;
    cursor: pointer;
    margin-top: 35px;
    margin-left: 2vw;
    letter-spacing: 1px;
    word-spacing: 4px;
    box-shadow: 7px 8px 20px 2px rgb(248, 166, 145);
}

button:hover{
    background-color: rgb(247, 247, 70);
    transform: scale(1.2);
    transition: all 0.3s ease-in-out;
}

.container{
    font-size: 1.6rem;
    font-weight: 600;
    color: rgb(37, 5, 165);
}

.name-topic{
    font-size: 1.2rem;
    color: rgb(5, 167, 27);
}

.ques{
    margin: 25px 0px 0px 0px;
}

.answer{
    font-size: 1.5rem;
    line-height: 50px;
    color: rgb(64, 2, 109);
}

.question{
    margin-top: 30px;
}

.quiz{
    display: none;
}

.remark{
    font-size: 1.9rem;
    margin-left: 20px;
    color: rgb(158, 6, 151);
    margin-bottom: 20px;
    line-height: 40px;
}

/* timer */
#timer{
    font-size: 1.9rem;
    color: rgb(228, 11, 11);
    text-shadow: 2px 2px 10px #f88e8ec9;
    position: fixed;
    right: 6vw;
    top: 8vh;
}