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