Styling a tooltip (popper.js / bootstrap v4 beta)
The structure of the tooltip is described in the docs. To change the style you need to override tooltip-inner and arrow: Update for Bootstrap 4.0.0 Demo .tooltip-inner { background-color: #00cc00; } .tooltip.bs-tooltip-right .arrow:before { border-right-color: #00cc00 !important; } .tooltip.bs-tooltip-left .arrow:before { border-left-color: #00cc00 !important; } .tooltip.bs-tooltip-bottom .arrow:before { border-bottom-color: #00cc00 !important; } .tooltip.bs-tooltip-top .arrow:before { … Read more