I am using high charts but am experiencing an issue with larger tooltip cropping off at the outer elements of the SVG, as per the image below.
I'm pretty sure, that similar topic exists on stack, however I can't find it. In general it is possible to achieve that using HTML tooltip, see: http://jsfiddle.net/7wVDV/147/
CSS:
.highcharts-container {
overflow: visible !important;
}
.MyChartTooltip {
position: relative;
z-index: 50;
border: 2px solid rgb(0, 108, 169);
border-radius: 5px;
background-color: #ffffff;
padding: 5px;
font-size: 9pt;
}