Navigation fixed at the top based on jquery responds to browser scroll bar events_jquery

Today I would like to share with you a navigation that is fixed at the top based on jquery. When the browser scroll bar is at the top, the navigation height is higher. When the browser scrolls down, the navigation height is automatically reduced and positioned at the top. top. The rendering is as follows:

Source code download

Implementation code:

html code:

<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>

css code:

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;
}