Here is my plunker: http://plnkr.co/edit/q3MpeDT2rSSCUy8CHdUa?p=preview
div.tooltip {
position: absolute;
text-align: center;
width: 100px;
height: 500px;
padding: 2px;
font: 12px sans-serif;
background: lightsteelblue;
border: 0px;
border-radius: 8px;
overflow-y: scroll;
}
When you hover the mouse on one of the circles, a tooltip with vertical scrollbar is always visible even when the height is more than enough for the content. Why is vertical scroll always visible. How and I make it show up only when the content actually overflows?