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