index.css

body{
    background-image: url('red.vs.blue.jpg');
    background-size: cover;
    font-family: 'Staatliches', cursive;
    background-repeat: no-repeat;color: white;
    /* overflow: hidden; */
}
#head-el{
    text-align: center;
    text-decoration: underline;
    font-size: 54px;
}
#all-main{
    display: flex;
    font-size: 34px;
}
.left-all-main{
    margin-left:16rem;
    margin-right: auto;
}
.right-all-main{
    margin-left: auto;
    margin-right: 6rem;
}
.instruction{
    font-size: 20px;
    margin-left: -7rem;
}
#play-btn-div{
margin-left: 48%;
margin-top: 4%;
}
#newgame-btn-div{    
    margin-left: 47.3%;
    width: 130vh;
}
#center-count{
    text-align: center;
    margin-left: -22rem;
}
#play-btn,#newgame-btn{
    padding: 10px;
    border-radius: 4px;
    background-color: #DC143C;
    font-weight: 600;
    margin: 10px;
    cursor: pointer;
    box-shadow: 0 3px 1rem rgba(0,0,0,1);
    font-size: large;
    bottom: 0;
    width: 15%;
    border: none;
}
#image-section{
    margin-left: -13rem;
    display: flex;
}
#image-section img{
    width: 280px;
    margin-left: -100px;
    margin-bottom: -3rem;
    padding: 10px 40px;
}#right-image-section img{
    width: 280px;
    -webkit-transform: scaleX(-1);
    transform: scaleX(-1);
    margin-left: -41px;
} 

#image-section input[type="radio" i] {
    margin-left: 3rem;
    margin-top: -1rem;
}