.tooltipster-g4b {
    opacity: 0.9;
}

.tooltipster-g4b .tooltipster-content {
    color: #b7b7b7;
}

.tooltipster-g4b .tooltipster-box {
    background: #000;
}

.tooltipster-g4b.tooltipster-bottom .tooltipster-arrow-background {
    border-bottom-color: #000;
}

.tooltipster-g4b.tooltipster-left .tooltipster-arrow-background {
    border-left-color: #000;
}

.tooltipster-g4b.tooltipster-right .tooltipster-arrow-background {
    border-right-color: #000;
}

.tooltipster-g4b.tooltipster-top .tooltipster-arrow-background {
    border-top-color: #000;
}

.tooltipster-g4b.tooltipster-bottom .tooltipster-arrow-border { border-bottom-color: #000; }
.tooltipster-g4b.tooltipster-left .tooltipster-arrow-border { border-left-color: #000; }
.tooltipster-g4b.tooltipster-right .tooltipster-arrow-border { border-right-color: #000; }
.tooltipster-g4b.tooltipster-top .tooltipster-arrow-border { border-top-color:#000; }