#search background transparent border none !important box-shadow none !important font-size 1em padding 0 width 0 height auto flex-grow 1 opacity 0.5 :focus color link-color opacity 1.0 ::-webkit-search-cancel-button display none // Microphone icon .speech-input display none opacity 0 default-transition :hover cursor pointer opacity 1 .speech-input-available display block opacity 0.25 .speech-listening color link-hover-color opacity 1