Element block pseudo-class :active generated with box-sizing content-box padding 20px cursor default line-height 1 text-shadow 1px 1px 1px rgba(0,0,0,0.2) width 50px height 50px border-radius box-shadow 0px 0px 6px rgba(0,0,0,0.5) transition overflow hidden display block font-size 16px margin 0px transform z-index auto font-weight normal position static background border 0px rgba(255,255,255,1) solid float none