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