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