フォームの入力ステップをわかりやすく示すためのステップバーです。
ステップが進めばclassにcurrentを指定します。それで色が付きます。
HTMl
<div class="Stepnav"> <ol> <li class="current">1<span>.製品情報入力</span></li> <li>2<span>.問合せ情報入力</span></li> <li>3<span>.お客様情報入力</span></li> <li>4<span>.確認</span></li> <li>5<span>.送信完了</span></li> </ol> <!-- /.Stepnav --></div>
CSS
/* Stepnav -----------------------------------------*/ .Stepnav ol { margin-top: 40px; display: table; table-layout: fixed; width: 100%; box-sizing: border-box; height: 48px; border-left: solid 1px #cccccc; border-right: solid 1px #cccccc; } .Stepnav ol li { position: relative; display: table-cell; box-sizing: border-box; padding-left: 25px; text-align: center; vertical-align: middle; color: #2196f3; font-size: 14px; background-color: #f9f9f9; font-weight: bold; border-top: solid 1px #cccccc; border-bottom: solid 1px #cccccc; } .Stepnav ol li:first-child { padding-left: 0; } @media screen and (max-width: 960px) { .Stepnav ol li { font-size: 12px; } } .Stepnav ol li.current { background-color: #2196f3; color: #FFF; } @media screen and (max-width: 960px) { .Stepnav ol li span { display: none; } } .Stepnav ol li:before { content: ""; position: absolute; top: -1px; right: -25px; bottom: 0; width: 0; height: 0; border-top: 24px solid transparent; border-bottom: 24px solid transparent; border-left: 24px solid #cccccc; z-index: 99; } .Stepnav ol li:nth-child(5):before { display: none; } .Stepnav ol li:after { content: ""; position: absolute; top: -1px; right: -24px; bottom: 0; width: 0; height: 0; border-top: 24px solid transparent; border-bottom: 24px solid transparent; border-left: 24px solid #f9f9f9; z-index: 99; } .Stepnav ol li:last-child:after { display: none; } .Stepnav ol li.current { border-top: solid 1px #2196f3; border-bottom: solid 1px #2196f3; } .Stepnav ol li.current:after { border-left: 24px solid #2196f3; }