With an anchored sidebar, the CSS shows:

```
.overflow-scroll {
	overflow: scroll !important;
}
```

I think this is causing the horizontal bar at the bottom of the sidebar here:
<img width="590" alt="Screen Shot 2021-04-23 at 10 26 33 AM" src="https://user-images.githubusercontent.com/12160301/115908126-9cb4c980-a41e-11eb-90b4-f5315807163a.png">


Changing this to:
```
.overflow-scroll {
	overflow-y: scroll !important;
	overflow-x: auto;
}
```

Keeps the y axis scroll but (I believe) will only keep the x axis scroll if someone enters text that is too long:

<img width="1352" alt="Screen Shot 2021-04-23 at 10 29 22 AM" src="https://user-images.githubusercontent.com/12160301/115908350-e998a000-a41e-11eb-8009-6a3d75615c52.png">

2021-04-23T17:31:14Z
apreshill
closed
Tweak anchored sidebar overflow CSS
https://github.com/quarto-dev/quarto-cli/issues/25