sytle.css

*{
    margin: 0;
    padding:0;
    box-sizing: border-box;
    font-family: "Josefin Sans", sans-serif;
    font-weight: 300;
}
html {
    font-size: 62.5%;
}
.main-div{
    width:100vw;
    min-height: 100vh;
    display:flex;
    justify-content: center;
    align-items: center;
    background-color:rgb(157, 235, 246);
}
.Quiz{
    background-color: #2e86de;
}
.quiz-box{
    width:60rem;
    margin: 2rem auto ;
    margin-bottom: 6rem;
    background-color:#0abde3;
    padding:1rem 5rem 5rem 5rem;
    border: .3rem solid cornflowerblue;
    border-radius: 1rem;
}
.quiz-box h1{
    background-color:#0abde3;
    font-size: 4rem;
    font-weight: 400;
    text-align: center;
    color:#fff;
    padding:1rem auto;
    width: 100%;
    margin-bottom: 3rem;
    border-radius: 3px;
}
.header-quiz{
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.header-quiz , #progress{
    color:black;
    font: size 1.5rem;
    font-weight: 500;
    background-color:#0abde3;
}
.header-quiz, #countdown{
    font-size:3rem;
    font-weight: 700;
    background-color:#0abde3;
    padding:.5rem;
    margin: .1rem;
    color:yellow;
    border-radius:.3rem;
}
.inner-div{
    width:50vw;
    padding: 4rem 8rem;
    background-color: #fff;
    border-radius: 2rem;
    box-shadow: 0rem 2rem 3rem -0.7rem gray;
}
.inner-div h2{
    font-size: 4rem;
    font-weight: 400;
    margin: 1rem 0rem 2rem 3rem;
}
.inner-div li{
    font-size: 2rem;
    padding-top: 2rem;
    list-style-type: none;
}
input{
    cursor: pointer;
}
#submit,#next,#previous ,.btn{
    font-size: 2rem;
    padding: 1rem 3rem;
    font-size:300;
    display:block;
    margin: auto;
    border:none;
    text-transform: uppercase;
    margin-top: 4rem;
    background-color: rgb(84, 165, 240);
    color:#fff;
    cursor: pointer;
}
#submit:hover {
    background-color:#55efc4;

}
#next:hover {
    background-color:#55efc4;

}
#previous:hover {
    background-color:#55efc4;

}
#showscore{
    background-color: #dfdfdf;
    margin-top: 4rem;
    padding:3rem 4rem;
    box-shadow:0rem 1rem 2rem -0.5rem gray;
}
#showscore h3{
    font-size:3rem;
    text-align: center;;

}
#showscore .btn {
    margin-top: 2rem;
    background-color:#55efc4 ;
    color:gray;
}
.socrearea{ 
    display:none;
}
#Buttons{
    font-size: 2rem;
    display: flex;
    justify-content: center;    
}