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