style.css

@import url('https://fonts.googleapis.com/css2?family=Baloo+Bhaina+2:wght@400;500&family=Roboto&display=swap');

*{
    margin: 0;
    padding: 0;
}
body{
    height: 100vh;
    width: 100vw;
    border-right:7px solid skyblue;
    border-left:7px solid skyblue;
    border-bottom:7px solid skyblue;
}
nav{
    border:7px solid skyblue;
    background-color: blueviolet;
    color:white;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}
nav ul li{
    font-size: 27px;
    font-family:'Roboto', sans-serif;
    list-style: none;
}
.gamecontainer{
    display: flex;
    justify-content: center;
    margin-top: 50px;
    position: relative;
}
.line{
    background-color: rgb(0, 140, 255);
    width:20vw;
    height: 3px;
    position: absolute;
    display: none;
}
.imgbox{
    display: flex;
    justify-content: center;
}
.imgbox img{
    height: 30vh;
    display: none;
    margin-top: 20px;

   
}
.container{
    display: grid;
    grid-template-columns:repeat(3,10vw);
    grid-template-rows:repeat(3,10vw);
    font-family: 'Roboto', sans-serif;
    position: relative;
}
.box{
    border: 2px solid blueviolet;
    font-size: 8vw;
}
.box:hover{
    background-color: rgb(234, 221, 246);
    cursor: pointer;
}
.boxtext{
     display: flex;
    justify-content: center;
}
.gameinfo{
    padding:0 34px;
    font-family:'Baloo Bhaina 2', cursive;
}
.info{
    text-align: center;
    font-size: 2vh;
}
#reset{
    background-color:rgb(156, 96, 212);

    
    font-weight: bold;
    color: white;
    width: auto;
    padding:1vh;
    border-radius: 10px;
    cursor: pointer;
    margin-left: 10px;
}
#turn{
    color: gray;
    font-size: 2.5vh;
}
@media screen and (max-width:800px) {
    .gamecontainer{
        flex-wrap: wrap;
    }
    .gameinfo{
        margin-top: 34px;
    }
    .gameinfo h1{
        font-size: 1.5rem;
    }
    .container{
    grid-template-columns:repeat(3,20vw);
    grid-template-rows:repeat(3,20vw);
    }
}