style.css

@import url('https://fonts.googleapis.com/css2?family=Ubuntu:ital,wght@1,300&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300&display=swap');
@import url('https://fonts.googleapis.com/css2?family=Baloo+Da+2&display=swap');
@import url('https://fonts.googleapis.com/css2?family=MedievalSharp&display=swap');

* {
    margin: 0;
    padding: 0;
}

nav {
    background-color: rgb(62, 11, 110);
    height: 60px;
}

nav ul {
    list-style-type: none;
}

nav ul li {
    font-weight: 600;
    font-size: 28px;
    text-align: center;
    color: white;
    padding-top: 15px;
    font-family: 'Ubuntu', sans-serif;
    font-stretch: expanded;
}

.gameContainer {
    display: flex;
    justify-content: center;
    margin-top: 50px;
    position: relative;
}

.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 black;
    font-size: 8vw;
    cursor: pointer;
    user-select: none;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: rgb(0, 0, 0.08);
    border-width: 5px;
    border-color: rgb(228, 127, 228);
    border-style: inset;
}

.box:hover {
    background-color: rgb(240, 227, 252);
}

.gameInfo {
    padding: 0 34px;
    display: flex;
    flex-direction: column;
    font-family: 'Baloo Da 2', cursive;
    
      
}
    li::selection {
        color: rgb(228, 175, 228);
        background-color: rgb(62, 11, 110);
    }

.info {
    font-size: 22px;
    text-align: center;
    align-items: center;
    font-weight: 600;
    color: rgb(227 31 31);
    user-select: none;
}

.imgBox img {
    width: 0;
    transition: width 1s ease-in-out;
    margin-top: 22px;
    margin-left: 20px;
    user-select: none;
}

.br-0 {
    border-right: 0;
    border-color: rgb(228, 127, 228);

}
.bl-0 {
    border-left: 0;
    border-color: rgb(228, 127, 228);

}
.bt-0 {
    border-top: 0;
    border-color: rgb(228, 127, 228);

}
.bb-0 {
    border-bottom: 0;
    border-color: rgb(228, 127, 228);
}

#reset {
    margin: 0 23px;
    padding: 3px 14px;
    background-color: rgb(220 203 237);
    border-radius: 28px;
    cursor: pointer;
    outline: none;
    border: 2px solid rgb(73, 5, 73);
    user-select: none;
    font-family: 'Baloo Da 2', cursive;
    font-size: 16px;
    font-weight: 600;
}

.line {
    background-color: rgb(133, 70, 133);
    width: 0;
    height: 3px;
    position: absolute;
    transition: width 1s ease-in-out;
    border-radius: 2px;
}

.winner {
    display: none;
    font-size: 112px;
    position: absolute;
    color: rgb(36 217 36);
    font-family: "MedivalSharp", cursive;
    margin-top: 141px;
    margin-left: 20px;
    transform: rotate(25deg);
    transition: display 1.5s ease-in-out;
    user-select: none;
}

.confetti {
    margin-top: 10px;
    margin-left: 10px;
    width: 413px;
    position: absolute;
    opacity: 0;
    transition: opacity 2s ease-in-out;
    z-index: -1;
}

.start {
    position: absolute;
    height: 50px;
    margin-top: 14%;
    margin-right: 42%;
    padding: 3px 14px;
    background-color: rgb(220 203 237);
    border-radius: 28px;
    cursor: pointer;
    outline: none;
    border: 2px solid rgb(73, 5, 73);
    user-select: none;
    font-family: 'Baloo Da 2', cursive;
    font-size: 16px;
    font-weight: 600;
    z-index: 100;
}

@media screen and (max-width: 800px) {
    .gameContainer {
        flex-wrap: wrap;
    }
    .gameInfo {
        margin-top: 34px;
    }
    .gameInfo h1 {
        font-size: 1.5rem;
        text-align: center;
    }
    .gameText {
        display: flex;
        flex-direction: column;
        justify-content: center;
    }
    .imgBox img{
        width: 178px;
        margin-left: 29%;
    }
    #reset {
        margin: 7px 42px;
        padding: 4px 14px;
    }
    .info {
        color: rgb(227 31 31);
        font-weight: 600;
        text-align: center;
    }
    .container {
        grid-template-columns: repeat(3, 20vw);
        grid-template-rows: repeat(3, 20vw);
    }
}