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