*{padding:0;margin:0;box-sizing:border-box}html,body{width:100%;height:100%;overflow:hidden}body{background:#000}canvas{width:100%;height:100%}.color-select{position:absolute;border:1px solid gray;border-radius:1px;background:#3339;padding:5px}.color-select__item{cursor:pointer;padding:2px;border-bottom:1px solid gray}.color-select__item:last-child{border-bottom:none}