Element block pseudo-class :active generated with border-radius transition transform padding 20px position static background display block cursor default z-index auto line-height 1 width 160px float none box-shadow 1px 1px 1px rgba(0,0,0,0.3) margin 0px border 0px rgba(0,0,0,1) solid height auto text-shadow 1px 1px 1px rgba(0,0,0,0.2) box-sizing content-box overflow hidden font-weight normal font-size 16px