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