Change div height when tab is selected - html

Question

I have a tabbed content that has 4 tabs and in each there are going to be two divs that make up the border design. The problem that I'm running into is that I have no idea how to animate the divs to change height when the tab they're located in is selected. I have a fiddle for reference and the markup is below.
HTML
<div class="container">
<ul class="tabs">
<li class="tab-link current" data-tab="tab-1" id="welcome_selector">Welcome</li>
<li class="tab-link" data-tab="tab-2">Tab Two</li>
<li class="tab-link" data-tab="tab-3">Tab Three</li>
<li class="tab-link" data-tab="tab-4">Tab Four</li>
</ul>
<div class="tabcontentcontainer">
<div id="tab-1" class="tab-content current"> <div class="bordertop_animate"> </div>welcome tab will be empty, save for the borders <div class="borderbottom_animate"></div></div>
<div id="tab-2" class="tab-content"><div class="bordertop_animate"></div> tab 2 content<div class="borderbottom_animate"></div> </div>
<div id="tab-3" class="tab-content"><div class="bordertop_animate"></div> tab 3 content<div class="borderbottom_animate"></div> </div>
<div id="tab-4" class="tab-content"><div class="bordertop_animate"></div> tab 4 content<div class="borderbottom_animate"></div>
</div>
</div>
</div>
CSS
.container {
width: 1000px;
min-height: 400px;
margin: 0 auto;
}
ul.tabs {
margin: 0px;
padding: 0px;
list-style: none;
background: #000;
vertical-align: middle;
font-weight: 400;
color:#FFF;
text-align: right;
text-transform: uppercase;
font-size: 8px;
letter-spacing: 0.6px;
}
ul.tabs li {
background: #000;
vertical-align: middle;
font-weight: 400;
color:#FFF;
text-align: right;
text-transform: uppercase;
font-size: 8px;
letter-spacing: 0.6px;
display: inline-block;
padding: 55px 15px 55px 15px;
cursor: pointer;
}
ul.tabs li.current {
background: #000;
color: #FFF;
}
#welcome_selector {
float: left;
padding-left: 128px;
}
.tabcontentcontainer {
height: 400px;
width: 1000px;
background: url(http://placehold.it/1000x400) #000;
position: relative;
}
.tab-content {
display: none;
background: rgba(0, 0, 0, 0.0);
padding: 15px;
}
.tab-content.current {
display: inherit;
}
.bordertop_animate {
position: absolute;
height: 38px;
width: 966px;
border-top: 2px solid #FFF;
border-right: 2px solid #FFF;
border-bottom: 0px solid #FFF;
border-left: 2px solid #FFF;
}
.borderbottom_animate {
position: absolute;
bottom: 15px;
height: 38px;
width: 966px;
border-top: 0px solid #FFF;
border-right: 2px solid #FFF;
border-bottom: 2px solid #FFF;
border-left: 2px solid #FFF;
}
JS
$(document).ready(function(){
$('ul.tabs li').click(function(){
var tab_id = $(this).attr('data-tab');
$('ul.tabs li').removeClass('current');
$('.tab-content').removeClass('current');
$(this).addClass('current');
$("#"+tab_id).addClass('current');
})
})
I'd like for the first tab to keep current divs height which is 38px, however I'd like the other 3 tabs to have theirs at a height of 185px- but for the height to grow from 38px to 185px when the tab is selected. The animation would be similar to if the divs had a :hover css selector applied with a 0.5s transition, except it would happen when the tab is selected, not on mouseover.
Sorry if this isn't detailed or specific enough, this is my first time posting a question/and dealing with jquery.

Answer 1

Here is a jquery solution to your problem, just in case you need it.
JS fiddle: http://jsfiddle.net/nPAhw/
html
<ul>
<li id="tab1">Tab One</li>
<li id="tab2">Tab Two</li>
</ul>
<div id="tabone">Tab one</div>
<div id="tabtwo">Tab Two</div>
css
#tabone{
width:200px;
height:38px;
border:solid blue;
margin:10px;
}
#tabtwo{
width:200px;
height:38px;
border:solid black;
margin:10px;
}
#tab1:hover{
cursor:pointer;
}
#tab2:hover{
cursor:pointer;
}
jquery / javascript
$('#tab1').click(function(){
var h = $('#tabone').height();
if(h < 185){
$('#tabone').animate({height:'185px'});
$('#tabtwo').animate({height:'38px'});
}
else $('#tabone').animate({height:'38px'});
});
$('#tab2').click(function(){
var h = $('#tabtwo').height();
if(h < 185){
$('#tabtwo').animate({height:'185px'});
$('#tabone').animate({height:'38px'});
}
else $('#tabtwo').animate({height:'38px'});
});

Answer 2

You would want to use the Jquery Animate method.
This method can perform animation effects on any numeric CSS property, like for example, height, which is what you want to achieve.
$( ".element-class" ).animate({
height: "185px"
}, 500);