[英]add a margin when the navbar becomes fixed
所以问题是,当标题消失时,我想固定我的导航。 一切正常,但问题是导航栏修复后,文章仍在下面。 并且我想修复该问题,但我想在导航栏修复后添加填充或边距。
我的代码:
<script type="text/javascript" src="jquery-3.1.1.js"></script>
<script>
var num = 120; //number of pixels before modifying styles
$(window).bind('scroll', function() {
if ($(window).scrollTop() > num) {
$('nav').addClass('fixed');
} else {
$('nav').removeClass('fixed');
}
});
</script>
HTML
<div id="headwrapper">
<header>
<img src="Logo.png">
<h1>IT TECH</h1>
</header>
</div>
<nav>
<div id="selector"></div>
<a class="link1" href="home.htm">
<p>Home</p>
</a>
<a class="link2" href="talen.htm">
<p>Programmeertalen</p>
</a>
<a class="link3" href="computer.htm">
<p>Computers</p>
</a>
<a class="link4" href="richting.htm">
<p>Richtingen</p>
</a>
<a class="link5" href="contact.htm">
<p>Contact</p>
</a>
</nav>
<div id="element">
<div id="slider">
<div title="Banaan" id="foto1">
<h1>Welcome to</h1><img src="Logo.png">
<h1>IT TECH</h1></div>
<div title="Peren" id="foto2"></div>
<div title="Kiwi's" id="foto3"></div>
<div title="Aardbeien" id="foto4"></div>
</div>
</div>
<article></article>
所以我想添加一个为滑块提供边距或为元素添加填充的类。
当用户向下滚动时,让脚本将正文上的填充设置为等于nav
的(当前)高度(或通过调整窗口大小来使导航位于顶部)。
$(window).bind('scroll resize', function() { var $nav = $('nav'), $body = $('body'); $nav.removeClass('fixed'); $body.css('padding-top',0); if ($(window).scrollTop() > $nav.offset().top) { $nav.addClass('fixed'); $body.css('padding-top',$nav.outerHeight()); } });
html, body {margin:0;} nav {display:block; background:#eee; width:100%;} nav.fixed {position:fixed; top:0;} nav a {display:inline-block; padding:10px;} #foto1 img {width:100%}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div id="headwrapper"> <header> <img src="https://placekitten.com/50/50"> <h1>IT TECH</h1> </header> </div> <nav> <div id="selector"></div> <a class="link1" href="home.htm"> <p>Home</p> </a> <a class="link2" href="talen.htm"> <p>Programmeertalen</p> </a> <a class="link3" href="computer.htm"> <p>Computers</p> </a> <a class="link4" href="richting.htm"> <p>Richtingen</p> </a> <a class="link5" href="contact.htm"> <p>Contact</p> </a> </nav> <div id="element"> <div id="slider"> <div title="Banaan" id="foto1"> <h1>Welcome to</h1><img src="https://placekitten.com/50/50"> <h1>IT TECH</h1></div> <div title="Peren" id="foto2"></div> <div title="Kiwi's" id="foto3"></div> <div title="Aardbeien" id="foto4"></div> </div> </div> <article></article>
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