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