Element block pseudo-class :active generated with cursor default position static font-size 16px border-radius padding 20px width 160px transition box-sizing content-box height auto overflow hidden font-weight normal border 4px rgba(0,0,0,1) solid transform text-shadow 1px 1px 1px rgba(0,0,0,0.2) float none display block z-index auto background box-shadow 1px 1px 1px rgba(0,0,0,0.3) line-height 1 margin 0px