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