style.css

* {
    margin: 0;
    padding: 0;
}

body {
    background-color: antiquewhite;
    text-align: center;
}


.container {
    height: 70vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.game {
    height: 60vmin;
    width: 60vmin;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 1.5vmin;
}

.box {
    height: 18vmin;
    width: 18vmin;
    border-radius: 1rem;
    font-size: 6vmin;
    box-shadow: 0 0 1rem rgba(0,0,0,0.3);
    background-color: aquamarine;
    color: black;
    font-weight: bolder;
    border: none;
}

#reset-game {
    height: 6vmin;
    width: 18vmin;
    border-radius: 1rem;
    font-size: 2vmin;
    padding: 1vmin;
    background-color: aquamarine;
    border: none;
}

.hide {
    display: none;
}

.winningClass {
    border: 4px solid black;
    box-shadow: 0 0 1rem rgba(0,0,0,0.6);
}

#msg {
    font-size: 4vmin;
    padding: 3vmin;
}

#new-game {
    height: 6vmin;
    width: 18vmin;
    border-radius: 1rem;
    font-size: 2vmin;
    padding: 1vmin;
    background-color: aquamarine;
    border: none;
    margin-right: 10px;
}

h2 {
    position: relative;
    top: 8vmin;
}

a {
    text-decoration: none;
    color: black;
}