Element block pseudo-class :active generated with z-index auto padding 5px font-size 16px box-sizing content-box transform border-radius width auto display block transition opacity 1 box-shadow 1px 1px 1px rgba(0,0,0,0.3) overflow hidden float none cursor default outline none position absolute margin 0px line-height 1 font-weight normal text-shadow 1px 1px 1px rgba(0,0,0,0.2) border 0px rgba(0,0,0,1) solid height auto background