Background position with var-*

by AndyE

HTML

<a class=twitter href=#></a>
<a class=facebook href=#></a>
<a class=gplus href=#></a>
<a class=linkedin href=#></a>

CSS

a {
    display: inline-block;
    width: 54px;
    height: 20px;
    overflow: hidden;
    margin: 0 5px;
    background-image: url('http://s358447095.onlinehome.info/share.png');
    background-position: var(bgX) var(bgY);
}

a:hover, a:focus { var-bgX: -54px; }
a:active   { var-bgX: -108px; }
a.facebook { var-bgY: -20px;  }
a.gplus    { var-bgY: -40px;  }
a.gplus.shared { var-bgY: -60px;  }
a.linkedin { var-bgY: -80px;  }

JavaScript

$('.gplus').on('click', function () {
    this.classList.toggle('shared');
});