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