root a::after{bottom:0;content:"";display:block;height:3px;left:50%;position:absolute;background-color:var(--pcol);transition:width .3s ease 0s,left .3s ease 0s;width:0}a:hover::after{width:100%;left:0}.pcol{color:var(--pcol)}.scol{color:var(--scol)}.acol{color:var(--acol)}.tcol{color:var(--tcol)}