html, body {
    max-width: 400px;
    margin: auto;
}

#game-header {
    display: flex;
    justify-content: space-between;
    margin-top: 25px;
}

#game-header div {
    flex-flow: row wrap;
    flex: 1;
    max-width: 200px;
    text-align: center;
    font-family: "Comic Sans MS", sans-serif;
    font-size: 1.5em;
    color: indigo;
}

#game-header button {
    flex-flow: row wrap;
    flex: 1;
    max-width: 95px;
}

button {
    border-radius: 5px;
    font-weight: bold;
    font-family: "Comic Sans MS", sans-serif;
    font-size: .9em;
    color: indigo;
    background-color: gold;
    padding-top: 2.5px;
    padding-bottom: 2.5px;
}

canvas {
    border: 1px solid black;
    display: block;
    margin: 20px auto;
    touch-action: none;
}