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