Element block pseudo-class :active generated with padding 15px box-sizing content-box font-size 16px float none display block background margin 3px z-index auto opacity 1 line-height 1 text-shadow position static border 0px rgba(0,0,0,1) solid height auto font-weight normal transform width auto border-radius overflow visible transition outline none box-shadow 1px 1px 4px rgba(0,0,0,0.2) cursor default