Element button pseudo-class :active generated with background float none box-shadow 1px 1px 1px rgba(0,0,0,0.3) text-shadow 1px 1px 1px rgba(0,0,0,0.2) box-sizing content-box transition margin 0px z-index auto font-weight normal border 0px rgba(0,0,0,1) solid position absolute cursor default transform border-radius height auto overflow hidden font-size 16px width 160px display inline-block line-height 1 padding 10px