Element button pseudo-element :before generated with transition width 160px border 0px rgba(0,0,0,1) solid line-height 1 padding 20px z-index auto border-radius float none height auto font-size 17px box-sizing content-box position relative background font-weight bold overflow hidden text-shadow 1px 1px 1px rgba(0,0,0,0.2) display block cursor default transform margin 0px box-shadow 1px 1px 1px rgba(180,180,180,1)