.il-footer-social a[href*="twitter.com/"]::before{content:'';display:block;width:28px;height:25px;margin:12px 0 0 6px;background-color:#fff;-webkit-mask-image:url(//contrib.webtheme.illinois.edu/ils-xtwitter/xtwitter.svg);mask-image:url(//contrib.webtheme.illinois.edu/ils-xtwitter/xtwitter.svg)}.il-footer-social a[href*="twitter.com/"]:focus::before,.il-footer-social a[href*="twitter.com/"]:hover::before{background-color:var(--il-orange)}