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