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