style.css

@import url('https://fonts.googleapis.com/css2?family=Baloo+Bhaina+2&family=Roboto&display=swap');
*{
    margin: 0;
    padding: 0;
}
body {
    background-color: #01121b;
    color: rgb(142, 223, 232);
}

.gameContainer{ 
    display: flex;
    justify-content: center;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
}

.container{
    display: grid;
    grid-template-rows: repeat(3, 10vw);
    grid-template-columns: repeat(3, 10vw);
    font-family: 'Roboto', sans-serif;
    position: relative;
}

.box{
    border: 10px solid;
    border-image: linear-gradient(#0b2a3b, #018262);
    border-image-slice: 1;
    font-size: 8vw;
    cursor: pointer;
    display: flex;
    justify-content: center;
    align-items: center;
    
}

.box:hover{
    background: radial-gradient(#0f4562, #01121b);
    /* border: none; */
}

.info {
    font-size: 22px;
}

.gameInfo{
    padding: 0 70px;
    font-family: 'Baloo Bhaina 2', cursive;
    position: relative;
    text-align: center;
    color: #fff;
}

.gameInfo h1{
    font-size: 2.5rem;
}

.imgbox img{
    width: 0;
    transition: width 1s ease-in-out;
    margin-top: 20%;
}

.br-0{
    border-right: 0;
}

.bl-0{
    border-left: 0;
}

.bt-0{
    border-top: 0;
}

.bb-0{
    border-bottom: 0;
}

#reset {
    position: absolute;
    top: 35%;
    left: 50%;
    transform: translate(-48%, -50%);
    padding: 1px 18px;
    background: none;
    text-align: center;
    border: none;
    cursor: pointer;
    font-family: 'Baloo Bhaina 2';
    font-size: 2.5rem;
    font-weight: bolder;
    color: #fff;
}

.line{
    height: 3px;
    width: 0;
    position: absolute;
    background-color: rgb(142, 223, 232);
    transition: width 1s ease-in-out;
}

@media screen and (max-width: 950px)
{
    .gameContainer{
        flex-wrap: wrap;
    }
    .gameInfo{
        margin-top: 34px;
    }
    .gameInfo h1{
        font-size: 1.5rem;
    }
    .container { 
        grid-template-rows: repeat(3, 20vw);
        grid-template-columns: repeat(3, 20vw);
    }
    .line {
        display: none;
}