styles.min.css

:where([data-flex-splitter-horizontal],[data-flex-splitter-vertical]){display:flex;height:100%}:where(:is([data-flex-splitter-horizontal],[data-flex-splitter-vertical]) > *){flex:none;overflow:auto;box-sizing:border-box}:where(:is([data-flex-splitter-horizontal],[data-flex-splitter-vertical]) > [role="separator"]){position:relative;touch-action:none;display:flex;align-items:center;justify-content:center;overflow:visible;background-color:#a0a0a026;z-index:100}:where(:is([data-flex-splitter-horizontal],[data-flex-splitter-vertical]) > [role="separator"]:hover){background-color:#a0a0a073}:where(:is([data-flex-splitter-horizontal],[data-flex-splitter-vertical]) > [role="separator"]):before{content:"";box-sizing:border-box;border:4px rgba(160,160,160,.8)}:where(:is([data-flex-splitter-horizontal],[data-flex-splitter-vertical]) > [role="separator"]):after{content:"";position:absolute;width:24px;height:24px}:where([data-flex-splitter-horizontal] > [role="separator"]){cursor:ew-resize;width:4px}:where([data-flex-splitter-horizontal] > [role="separator"]):before{width:8px;margin:-2px;height:24px;border-style:double}:where([data-flex-splitter-vertical]){flex-direction:column}:where([data-flex-splitter-vertical] > [role="separator"]){cursor:ns-resize;height:4px}:where([data-flex-splitter-vertical] > [role="separator"]):before{width:24px;height:8px;margin:-2px;border-style:double}