borderとtransitionを使ったエフェクト - jsdo.it - Share JavaScript, HTML5 and CSS<a class="one" href="#"></a> <a class="two" href="#"></a> <a class="san" href="#"></a> <br> <a class="yon" href="#"></a> <a class="goo" href="#"></a> <a class="rok" href="#"></a> <a class="ryk" href="#"></a> <br> <a class="x7" href="#"></a> <a class="x8" href="#"></a> <a class="x9" href="#"></a> a { display:inline-block; -webkit-box-sizing:border-box; -moz-box-sizing:border-box; box-sizing:border-
