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