style.css

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@500&display=swap');

*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'IBM Plex Sans', sans-serif;
}
/*My Name settings*/
h2{
    text-align: center;
    color: white;
}
/*The whole game background*/
body{
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background-image: linear-gradient(#FF00FF , #301934);
}
/*Game Box frame*/
.wrapper{
    width: 65vmin;
    height: 78vmin;
    display: flex;
    overflow: hidden;
    flex-direction: column;
    justify-content: center;
    background: #293447;
    border-radius: 5px;
    box-shadow: 0 20px 40px rgba(52, 87, 220, 0.2);
}
.game-details{
    color: #ffffff;
    font-weight: 500;
    font-size: 1.2rem;
    padding: 20px 27px;
    display: flex;
    justify-content: space-between;
}
.play-board{
    height: 100%;
    width: 100%;
    display: grid;
    background: #212837;
    grid-template: repeat(30, 1fr) / repeat(30, 1fr);
}
.play-board .food{
    background: #ff003d;
}
.play-board .head{
    background: #73ff00;
}
.controls{
    display: none;
    justify-content: space-between;
}
.controls i{
    padding: 25px 0;
    text-align: center;
    font-size: 1.3rem;
    color: #b8c6dc;
    width: calc(100% / 4);
    cursor: pointer;
    border-right: 1px solid #171b26;
}
@media screen and (max-width: 800px) {
    .wrapper{
        width: 90vmin;
        height: 115vmin;
    }
    .game-details{
        font-size: 1rem;
        padding: 15px 27px;
    }
    /*Arrows controls*/
    .controls{
        display: flex;
    }
    .controls i{
        padding: 15px 0;
        font-size: 1rem;
    }
}