html,
        body {
            overflow: hidden;
            width: 100%;
            height: 100%;
            margin: 0;
            padding: 0;
        }

        #renderCanvas {
            width: 100vw;
            height: 100vh;
            touch-action: none;
        }

        .color-list {
            position: absolute;
            left: 15px;
            bottom: 10px;
        }
        img {
            width: 50px;
        }