blur
<-- add a blur class to body tag-->
+ <body class="filter">
<div>
<div class="v-blur-0">
</div>
<div class="v-blur-1">
</div>
<div class="v-blur-2">
</div>
<div class="v-blur-3">
</div>
<div class="v-blur-4">
</div>
<div class="v-blur-full">
</div>
</div>
filter-blur version