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