How can I utilize css sprites

Hi Chaitanya Badhe, CSS Sprites is handy to optimize page loading. Yet it will need an extra amount of work to apply to the Sporty theme, and it’s hard to provide you detailed guide here. Please consider to hire a developer to help you on this, or you can use our custom service. 
Regards,
An Nguyen
 

Hi There,
You can use like this:

#ja-header {
 background-image:url(sprite.png);
 background-repeat: repeat-x;
 background-position: 0px -72px;
 box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
 min-height: 102px;
 -moz-box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
 position: relative;
 -webkit-box-shadow: 0 1px 3px rgba(0, 0, 0, 0.15);
 z-index: 999;
}

Please try again.
 
Best Regards,
Ziven.