.right-frame,.left-frame{height:100%;width:37%;position:absolute;top:0}.right-frame span,.left-frame span{position:absolute;z-index:3;background-color:var(--style-frame_colour)}.right-frame .horizontal,.left-frame .horizontal{height:0;padding-top:37%;width:100%}.right-frame .vertical,.left-frame .vertical{height:100%;width:37%}.right-frame{right:0}.right-frame .horizontal{bottom:0;right:0}.right-frame .vertical{bottom:0;right:0}.left-frame{left:0}.left-frame .horizontal{top:0;left:0}.left-frame .vertical{bottom:0;left:0}