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