今天给大家分享一款基于jquery固定于顶部的导航，这款导航当浏览器滚动条位于顶部时，导航高度较高，当浏览器滚动向下滚动时，导航高度自动减低，并位于顶部。效果图如下：
实现的代码：
html代码：
<div> <div data-0="height:192px" data-128="height: 64px"> <div> <div> <svg viewbox="0 0 24 24" x="0px" y="0px" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <g> <path d="M3,18h18v-2H3V18z M3,13h18v-2H3V13z M3,6v2h18V6H3z"> </path> </g> </svg> </div> <div> </div> <div> <svg viewbox="0 0 24 24" x="0px" y="0px" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <g> <path d="M15.5,14h-0.8l-0.3-0.3c1-1.1,1.6-2.6,1.6-4.2C16,5.9,13.1,3,9.5,3C5.9,3,3,5.9,3,9.5S5.9,16,9.5,16c1.6,0,3.1-0.6,4.2-1.6l0.3,0.3v0.8l5,5l1.5-1.5L15.5,14z M9.5,14C7,14,5,12,5,9.5S7,5,9.5,5C12,5,14,7,14,9.5S12,14,9.5,14z"> </path> </g> </svg> </div> <div> <svg viewbox="0 0 24 24" x="0px" y="0px" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> <g> <path d="M12,8c1.1,0,2-0.9,2-2s-0.9-2-2-2c-1.1,0-2,0.9-2,2S10.9,8,12,8z M12,10c-1.1,0-2,0.9-2,2s0.9,2,2,2c1.1,0,2-0.9,2-2S13.1,10,12,10z M12,16c-1.1,0-2,0.9-2,2s0.9,2,2,2c1.1,0,2-0.9,2-2S13.1,16,12,16z"> </path> </g> </svg> </div> </div> <div data-0="font-size: 48px; padding: 0 0 24px 12px;" data-128="font-size: 18px; padding: 0 0 21px 60px;"> Page Title </div> </div> <div data-0="padding-top: 192px;" data-192="padding-top: 190px;"> <div> Content goes here! </div> <div> Content goes here! </div> <div> Content goes here! </div> <div> Content goes here! </div> <div> Content goes here! </div> <div> Content goes here! </div> <div> Content goes here! </div> </div> </div> <script src='https://www.jb51.net/jquery.js'></script> <script src='https://www.jb51.net/skrollr.min.js'></script> <script> $(document).ready(function () { skrollr.init({ smoothScrolling: true }); }); //@ sourceURL=pen.js </script>
css代码：
html, body { background: #fafafa; color: #1BBBFB; font-family: sans-serif; } #page { position: absolute; top: 0; right: 0; bottom: 0; left: 0; } #toolbar { display: block; position: fixed; width: 100%; z-index: 10; box-sizing: border-box; -moz-box-sizing: border-box; background-color: #1BBBFB; padding: 0 16px; } #actions { position: relative; display: flex; align-items: center; flex-direction: row; height: 64px; top: 0; left: 0; right 0; } #actions .icon { padding: 7px; margin: 2px; vertical-align: middle; } #actions .spacer { flex: 1; } #actions svg { display: inline-block; pointer-events: none; position: relative; vertical-align: middle; width: 24px; height: 24px; fill: #fff; } #title { padding: 21px; position: absolute; bottom: 0; color: #fff; } #content { display: block; position: relative; padding: 24px; } .card { display: block; position: relative; width: 60%; height: 100px; border: 1px solid #1BBBFB; -webkit-border-radius: 4px; -moz-border-radius: 4px; border-radius: 4px; background-color: #fff; margin: 16px auto; padding: 24px; }
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