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