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