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