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