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