body {
    height: 100vh; /* Fallback for browsers that do not support Custom Properties */
    height: calc(var(--vh, 1vh) * 100);
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: center;
    align-items: center;
} 

.useLandscape {
    display: none;
}

canvas {
    vertical-align: top;
}

.menuButton {
    position: absolute;
    top: 25px;
    left: 25px;
    width: 50px;
    height: 50px;
    z-index: 10;
    cursor: pointer;
}

#menuPage {
    position: absolute;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 9;
    background: #fff;
    font-family: 'Quicksand';
}

p.button {
    cursor: pointer;
}

@media screen and (orientation:portrait) {
    canvas {
        display: none;
    }
    .useLandscape {
        display: block;
    }
}