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