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