height-1
100%
<--add a width-height class to body tag-->
+ <body class="width-height">
<div class="v-h-full" >
<div>
</div>
</div>
height-full version
height-3
60%
<--add a width-height class to body tag-->
+ <body class="width-height">
<div class="v-h-3" >
<div>
</div>
</div>
height-3 version