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center div both horizontal and vertical

.className{
	margin:0 auto;
	width:200px;
	height:200px;
}

.className{
	width:300px;
	height:200px;
	position:absolute;
	left:50%;
	top:50%;
	margin:-100px 0 0 -150px;
}

$(window).resize(function(){

	$('.className').css({
		position:'absolute',
		left: ($(document).width() - $('.className').outerWidth())/2,
		top: ($(document).height() - $('.className').outerHeight())/2
	});

});

// To initially run the function:
$(window).resize();
https://snipt.net/embed/d4528b45bea641bc518b32d679b72abf/
/raw/d4528b45bea641bc518b32d679b72abf/
d4528b45bea641bc518b32d679b72abf
text
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27
2019-08-23T07:22:06
True
False
False
/api/public/snipt/12631/
center-div-both-horizontal-and-vertical
<table class="highlighttable"><tr><td class="linenos"><div class="linenodiv"><pre><a href="#L-1"> 1</a> <a href="#L-2"> 2</a> <a href="#L-3"> 3</a> <a href="#L-4"> 4</a> <a href="#L-5"> 5</a> <a href="#L-6"> 6</a> <a href="#L-7"> 7</a> <a href="#L-8"> 8</a> <a href="#L-9"> 9</a> <a href="#L-10">10</a> <a href="#L-11">11</a> <a href="#L-12">12</a> <a href="#L-13">13</a> <a href="#L-14">14</a> <a href="#L-15">15</a> <a href="#L-16">16</a> <a href="#L-17">17</a> <a href="#L-18">18</a> <a href="#L-19">19</a> <a href="#L-20">20</a> <a href="#L-21">21</a> <a href="#L-22">22</a> <a href="#L-23">23</a> <a href="#L-24">24</a> <a href="#L-25">25</a> <a href="#L-26">26</a> <a href="#L-27">27</a></pre></div></td><td class="code"><div class="highlight"><pre><span></span><span id="L-1"><a name="L-1"></a>.className{ </span><span id="L-2"><a name="L-2"></a> margin:0 auto; </span><span id="L-3"><a name="L-3"></a> width:200px; </span><span id="L-4"><a name="L-4"></a> height:200px; </span><span id="L-5"><a name="L-5"></a>} </span><span id="L-6"><a name="L-6"></a> </span><span id="L-7"><a name="L-7"></a>.className{ </span><span id="L-8"><a name="L-8"></a> width:300px; </span><span id="L-9"><a name="L-9"></a> height:200px; </span><span id="L-10"><a name="L-10"></a> position:absolute; </span><span id="L-11"><a name="L-11"></a> left:50%; </span><span id="L-12"><a name="L-12"></a> top:50%; </span><span id="L-13"><a name="L-13"></a> margin:-100px 0 0 -150px; </span><span id="L-14"><a name="L-14"></a>} </span><span id="L-15"><a name="L-15"></a> </span><span id="L-16"><a name="L-16"></a>$(window).resize(function(){ </span><span id="L-17"><a name="L-17"></a> </span><span id="L-18"><a name="L-18"></a> $(&#39;.className&#39;).css({ </span><span id="L-19"><a name="L-19"></a> position:&#39;absolute&#39;, </span><span id="L-20"><a name="L-20"></a> left: ($(document).width() - $(&#39;.className&#39;).outerWidth())/2, </span><span id="L-21"><a name="L-21"></a> top: ($(document).height() - $(&#39;.className&#39;).outerHeight())/2 </span><span id="L-22"><a name="L-22"></a> }); </span><span id="L-23"><a name="L-23"></a> </span><span id="L-24"><a name="L-24"></a>}); </span><span id="L-25"><a name="L-25"></a> </span><span id="L-26"><a name="L-26"></a>// To initially run the function: </span><span id="L-27"><a name="L-27"></a>$(window).resize(); </span></pre></div> </td></tr></table>
css, div, horizontal, javascript, vertical