Dash Datatable has a different width in different web browsers while using Dash Bootstraps Components

Here is an image of my application in the Chrome web browser using the cyborg dash bootstraps theme;
app = dash.Dash(__name__, external_stylesheets=[dbc.themes.CYBORG])

As you can see, the datatables are all set next to eachother, edge to edge, as I would like.

The dash bootstraps layout looks like this;

The second row on the bottom contains 2 main columns. One of them contains the datatable with Rear Body [H] and Front Assembly [H] headers, and the other column contains the range slider along with the other 2 datatables. Here is a pastebin of the relevant code where I use bootstraps within my app layout.

However, in other browsers such as Firefox and Microsoft Edge, the columns are no longer set edge to edge and they overlap like so;

The above image is taken still using the cyborg theme, and in the Firefox web browser. Nothing has changed in my code between these two images, and I have no idea why the datatables overlap in one browser but not the other.

I also noticed that this seems to be somewhat theme dependent. Using the default bootstrap theme, the app appears like this in the Chrome browser, and the datatables are overlapping again;

I would like to know how to fix this so that the columns are displayed consistently across all web browsers, and there is no overlap. I have dash v1.13.3, dash-bootstrap-components v0.10.2, and dash-table 4.8.1. I don’t see any reason for this issue to be on my end, so it might possibly be a bug? Thank you for your help.

Hey @xyzasdf

This is probably because both Bootstrap CSS and DashTable use a CSS class called row. Can you try adding the following custom CSS to your app and see if that fixes the problem?

.dash-table-container .row {
  display: block;
  margin: 0;

To add this to your app, you can just create a file called assets/custom.css. Any CSS in the assets/ folder is automatically picked up and linked to your app by Dash. More details here. Let me know if that works for you.

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(Also, really cool app! Would love to see this in https://community.plotly.com/tag/show-and-tell when you finish :slightly_smiling_face:)

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Unfortunately this did not work. In Firefox and Edge the columns look exactly the same, while in Chrome it now looks like this (which is fine on its own, if I wanted to remove the spacing I could just use no_gutters=True).

This fix solved my issue, many thanks!

Previously, using any Bootstrap theme immediately rendered ineffective the style_data code whereby the text in cells should have been wrapped onto multiple lines. Instead, the table had a scroll bar along its width, thus distorting how the page was displayed.