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