Block

Did you initially add the quote using the “Quote” block with the “Plain” style variation, and then change it to the “Pullquote” block?

If so, it sounds like the block may still contain the “plain” CSS styling which removes the border.

Check the block settings in the side panel under ‘Advanced’ > ‘Additional CSS Class(es)’ and remove the classes from here.

Nope I used the highlighted quote block

Why remove this is-style-tw-icon

On your page I can see a is-style-tw-icon CSS class on the Pullquote block.
Possibly from another plugin providing it’s own blocks?

There is CSS loaded which removes the border like so:

.wp-block-pullquote:is(.is-style-plain, .is-style-tw-icon) {
  border: none;
}

If you remove the is-style-tw-icon CSS class then the quote should be bordered.

I’s works on this page https://www.rvbild.se/2022/11/basta-vinterkladerna-vid-fotografering/

Is the quote block from the Toolkit for Block Theme (Gutenberg Blocks, Templates, Patterns, Google Fonts) – Twentig plugin?

And If I remove the Css the quote sign disappear And It nor look good

I’m not shure?

Turned the Twentig plugin off and the border is back.

Turned the plugin off and then turned it on again now It*s woork

Yep the “Icon” style is an extra style provided by the Twentig plugin.

It looks like this “Icon” style with the quote icon is removing the border.

I tried with that plugin and you can make the border reappear by making sure to select a border style in the “Border color and style picker options”.

I think this is why one of your quotes has the border and the other does not.