.tooltip {
padding: 5px;
font-size: 12px;
opacity: 1;
background-repeat: no-repeat;
background-image: url(tooltip.gif);
}
.tooltip-inner {
padding: 5px 10px;
max-width: 200px;
pointer-events: none;
color: white;
text-align: center;
background-color: rgba(0,0,0,0.95);
border-radius: 6px;
box-shadow: 0 0 3px rgba(0, 0, 0, 0.25);
}

.tooltip-inner img{
    max-width: 100%;
}
.tooltip-bottom {
background-position: top center;
}
.tooltip-top {
background-position: bottom center;
}
.tooltip-left {
background-position: right center;
}
.tooltip-right {
background-position: left center;
}