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