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