.sprite{background-image:url('../img/sprite.png');background-repeat:no-repeat;display:inline-block}.sprite-home{width:24px;height:24px;background-position:0 0}.sprite-about{width:24px;height:24px;background-position:-24px 0}.sprite-explore{width:24px;height:24px;background-position:-48px 0}.sprite-contact{width:24px;height:24px;background-position:-72px 0}.sprite-logo{width:32px;height:32px;background-position:0 -24px}.lazy-load{opacity:0;transition:opacity 0.3s ease-in-out}.lazy-loaded{opacity:1}