Element button pseudo-element :before generated with height 0px border 1px rgba(255, 255, 255, 0.909804) solid padding 0px font-size 16px opacity 1 cursor default width 25px z-index auto display block margin 0px overflow visible text-shadow float none background status box-sizing content-box transition font-weight normal box-shadow outline none transform border-radius position absolute line-height normal