Element button pseudo-element :before generated with display inline-block background position fixed float none transform z-index auto margin 15px font-size 16px outline none opacity 1 line-height normal transition height auto border 1px #b7b7b7 solid box-sizing content-box font-weight normal box-shadow 2px 2px 2px rgba(0,0,0,0.2) text-shadow 1px 1px 0px rgba(255,255,255,0.66) padding 10px cursor default overflow visible border-radius width auto