javascript - Expand div from center of the body using jQuery -


how expand / grow div center? expands top left bottom right. here's jsfiddle.

<div class="growme">test</div> 
$('.growme').animate({     width: '100%',     height: '100%',     opacity: 1, }, 'normal'); 
.growme {     background-color: #990000;     height: 0;     width: 0;     position: absolute;     filter: alpha(opacity=0);     opacity: 0; }

try make .growme class center of body. adding top, left,bottom , right 0.

$('.growme').animate({      width: '100%',      height: '100%',      opacity: 1,  }, 'normal');
.growme {      background-color: #990000;      height: 0;      width: 0;      position: absolute;      filter: alpha(opacity=0);      opacity: 0;      top:0;      left:0;      bottom:0;      right:0;      margin:auto;  }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>  <div class="growme">test</div>

**

or

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you can use transition same.

$('.growme').animate({      width: '100%',      height: '100%',      opacity: 1,  }, 'normal');
.growme {      top: 50%;      left: 50%;      transform: translate(-50%, -50%);      -webkit-transform: translate(-50%, -50%);      -ms-transform: translate(-50%, -50%);      -moz-transform: translate(-50%, -50%);      margin: auto;      background-color: #990000;      position: absolute;  }
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>  <div class="growme">test</div>


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