*, *::after, *::before {
    padding: 0;
    margin: 0;
    outline: 0;
    box-sizing: border-box;
}

body {
    font-family: Verdana, Geneva, Tahoma, sans-serif;
}

main {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}

.box {
    width: 70px;
    height: 70px;
    border: 2px solid black;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.7rem;
    font-weight: bolder;
    cursor: pointer;
}

.box:hover {
    box-shadow: 0 0 2rem hsl(235, 100%, 65%);
}

.row {
    display: flex;
}

h1 {
    margin-top: 50px;
    text-align: center;
    color: grey;
}

.win {
    background-color: lightgreen;
}

.none {
    background: red;
}

h1 i {
    padding-top: 17px;
    transition: all 0.15s ease-in-out;
    cursor: pointer;
}

h1 i:hover {
    color: black;
}

.hide {
    display: none;
}