Element block pseudo-class :active generated with z-index auto cursor default font-size 15px display block margin 0px overflow hidden box-sizing content-box text-shadow line-height 2 width 160px float none padding 20px background border 0px rgba(0,0,0,0) none transition height auto font-weight normal box-shadow 0px 0px 1px rgba(0,0,0,0.5) outline none transform position static border-radius status opacity 1