So I'm using react-bootstrap to implement a tooltip to my react application.
When using their tooltip, im not getting any default styling at all to it. So to solve this I had to add some css, however I can only add some css to the body.
An image to show you what I mean. 
In my case im missing the arrow. Should the arrow not be there by default?
I've followed the https://react-bootstrap.github.io/components/overlays/ and have followed the examples they've given me.
<OverlayTrigger
placement="right"
overlay={
<Tooltip id="tooltip-right">
Tooltip on <strong>Right</strong>.
</Tooltip>
}
>
<Button variant="secondary">Tooltip on right</Button>
</OverlayTrigger>
CSS
.tooltip {
background: #333;
border-radius: 5px;
padding: 10px;
color: whitesmoke;
margin-left: 5px;
}
.tooltip-arrow {
content: "";
background: #333;
}
UPDATE: Solved by creating my own arrow with css:
.tooltip::after {
position: absolute;
left: -7px;
top: 43%;
content: '';
width: 15px;
height: 15px;
background: #333;
transform: rotate(45deg);
}
But it's a temporary solution only, hoping to know why the default arrow isn't displaying.