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