This may, strictly speaking, be a bug in the [[plugins/contrib/pandoc]] plugin, but I think it would be better to fix it in ikiwiki because of its kind (and maybe because I believe/hope pandoc will become the markdown dialect standard). For all I know it might not only affect pandoc tables. When creating a simple table in pandoc-flavoured markdown, 1 2 --- --- 3 4 pandoc converts this to the html code <table> <thead> <tr class="header"> <th align="left">1</th> <th align="left">2</th> </tr> </thead> <tbody> <tr class="odd"> <td align="left">3</td> <td align="left">4</td> </tr> </tbody> </table> `<tr class="header">` causes it to be affected by `style.css`'s .header { margin: 0; font-size: 140%; font-weight: bold; line-height: 1em; display: block; } (more specifically by `display: block;`), which results in all header cells to cramp together in the first column. The fix is easy: In `style.css` change `.header {` to `.header tr:not(.header) {`. Alternatively, add the following code. tr.header { display: table-row; } I've added that last code snippet to my `custom.css` file. I admit `.header tr:not(.header)` is not especially elegant, but then again, I have almost no knowledge of CSS. There might be better solutions. (I don't even know why `display: block;` breaks the tables or why changing it to `display: table-header;` doesn't fix it but `display: table-row;` does :DÂ ) > This is essentially a conflict between ikiwiki's expectations for the > definitions of CSS classes, and pandoc's expectations. The ikiwiki > templates use `class="header"` to mean essentially the same thing > as a HTML5 `<header>`, while Pandoc assumes a different meaning. > > I think `div.header, header.header {` is probably a cleaner fix, > and I have [[done]] that. > > FYI, `display: block` breaks the tables because it makes the `<tr>` not > be treated as a table row by the browser's layout engine. > `table-header` is not a valid > [value for the CSS `display` attribute](https://developer.mozilla.org/en-US/docs/Web/CSS/display) > so that won't work. > > --[[smcv]]