style.css

*{
    margin:0;
    padding:0;
}

.line{
    background-color: blueviolet;
    height: 3px;
    width: 0;
    position: absolute;
    left: 0;
    transition:width 1s ease-in-out;
}

nav{
    height: 60px;
    background-color: purple;
    color: plum;
    font-size: 30px;
    display: flex;
    align-items: center;
    padding: 0 15px;
    font-family: 'Lora',serif;
}
nav ul{
    list-style-type: none;
}

.game{
    position: relative;
    background-color: pink;
    display: flex;
    justify-content: center;
    margin-top: 50px;
}

.container{
    position: relative;
    display: grid;
    grid-template-rows: repeat(3,10vw);  /*viewport width - 10% of visible screen*/
    grid-template-columns: repeat(3,10vw);
    font-family: 'Times New Roman', Times, serif;
}

.box{
    border: 3px solid rgb(92, 1, 92);
    border-radius: 20%;
    font-size: 8vw;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
}

.box:hover{
    background-color: rgb(227, 137, 167);
}

.info{
    padding: 20px;
    color: rgb(183, 42, 183);
}
.img img{
    width: 0;
    transition: 1s ease-in-out;
    margin: 0px 20px;
}
.btn{
    background-color: rgb(92, 5, 92);
    color: rgb(246, 205, 246);
    padding: 1px 18px;
    border-radius: 6px;
    cursor: pointer;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 20px;
    margin: 10px 30px;    
}
@media screen and (max-width: 800px)  
{
    .game{
        flex-wrap: wrap;
    }
    .gameInfo{
        margin-top: 10px;
    }
}