.promo_button{display:inline-block;border-radius:4px;background-color:white;border:none;color:grey;text-align:center;font-size:24px;padding:20px;width:200px;transition:all 0.5s;cursor:pointer;margin:5px}.promo_button span{cursor:pointer;display:inline-block;position:relative;transition:0.5s}.promo_button span:after{content:'\00bb';position:absolute;opacity:0;top:0;right:-20px;transition:0.5s}.promo_button:hover span{padding-right:25px}.promo_button:hover span:after{opacity:1;right:0}