.nav-link:after { position: absolute; -moz-transition: 0.3s; -ms-transition: 0.3s; -o-transition: 0.3s; -webkit-transition: 0.3s; transition: 0.3s; content: ''; width: 0; bottom: 0; height: 3px; } .nav-link:after { left: 0; } .nav-link:hover:after { width: 100%; left: 0; background: #fff; } .nav-link:hover { border-color: #fff; color: #fff; }

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