:root {
    --tooltipbg:    rgba(0, 0, 0, 0.7);
}

.b-tooltip {
    font-size:      0.6em;
	padding:        0.3em;
    border-radius:  0.2em;
    color:          rgba(255, 255, 255, 0.6);
	text-align:     center;
	position:       absolute;
	background:     var(--tooltipbg);
	display:        inline-block;
    opacity:        1;
	}


.b-tooltip:after {
    content: " ";
    position: absolute;
    left: -10px;
    top: 4px;
    border-top: 10px solid transparent;
    border-right: 10px solid var(--tooltipbg);
    border-left: none;
    border-bottom: 10px solid transparent;
    }