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