styles.css

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: black;
    width: 100vw;
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

p {
    color: white;
}

.gridContainer {
    margin-top: 3rem;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    width: 30rem;
    /* border: 2px solid black; */
}

.playButton {
    background-color: rgb(235, 248, 245);
    width: 1fr;
    height: 10rem;
    font-size: 8rem;
}

.startBtn {
    background-color: rgb(254, 167, 27);
    width: 11rem;
    height: 6rem;
    margin-top: 2rem;
    font-size: 1.5rem;
}

.startBtn:hover {
    background-color: rgb(248, 240, 2);
}

.playButton:hover {
    background-color: rgb(181, 130, 227);
}

p {
    font-size: 3rem;
}

.winningSquare {
    background-color: rgb(255, 238, 0);
    width: 1fr;
    height: 10rem;
    font-size: 8rem;
}

.winningSquare:hover {
    background-color: rgb(255, 238, 0);
    width: 1fr;
    height: 10rem;
    font-size: 8rem;
}