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