body {
    font-family:'Gabarito', sans-serif;
    font-size: 16px;
    margin: 32px;
    padding: 0;
}
#solved {
    width: 400px;
    border: 1px solid black;
    margin: 0 auto;
    text-align: center;
}

.solution {
    width: 100%;
    height: 100px;
    border: 1px solid black;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}
.solution B {
    line-height: 70px;
}

#board {
    width: 400px;
    height: 400px;
    border: 1px solid black;
    margin: 0 auto;
    text-transform: uppercase;
    user-select: none;
}

h1.win {
    text-align: center;
    line-height: 150px;
    font-size: 200px;
}

.cell {
    width: 25%;
    height: 25%;
    float: left;
    border: 1px solid black;
    box-sizing: border-box;
    text-align: center;
    font-size: 50px;
    line-height: 120px;
    cursor: pointer;
}

.cell.selected {
    background-color: #ccc;
    background: radial-gradient(circle, white, lightgray);
}