Navigasi ditetapkan di bahagian atas berdasarkan jquery bertindak balas kepada bar skrol penyemak imbas events_jquery

Hari ini saya ingin berkongsi dengan anda navigasi yang ditetapkan di bahagian atas berdasarkan jquery Apabila bar skrol penyemak imbas berada di bahagian atas, ketinggian navigasi lebih tinggi Apabila penyemak imbas menatal ke bawah, ketinggian navigasi adalah secara automatik dikurangkan dan diletakkan di bahagian atas. Paparannya adalah seperti berikut:

Muat turun kod sumber

Kod pelaksanaan:

kod html:

<div id="page">
<div id="toolbar" data-0="height:192px" data-128="height: 64px">
<div id="actions">
<div class="icon">
<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 id="menu">
<path d="M3,18h18v-2H3V18z M3,13h18v-2H3V13z M3,6v2h18V6H3z">
</path>
</g>
</svg>
</div>
<div class="spacer">
</div>
<div class="icon">
<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 id="search">
<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 class="icon">
<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 id="more-vert">
<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 id="title" 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 id="content" data-0="padding-top: 192px;" data-192="padding-top: 190px;">
<div class="card">
Content goes here!
</div>
<div class="card">
Content goes here!
</div>
<div class="card">
Content goes here!
</div>
<div class="card">
Content goes here!
</div>
<div class="card">
Content goes here!
</div>
<div class="card">
Content goes here!
</div>
<div class="card">
Content goes here!
</div>
</div>
</div>
<script src='jquery.js'></script>
<script src='skrollr.min.js'></script>
<script> $(document).ready(function () {
skrollr.init({ smoothScrolling: true });
}); //@ sourceURL=pen.js
</script>

kod css:

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;
}