Button blocks are not semantically buttons, but links inside a styled div.
If you do not add a link, a link tag without an anchor will be used.
Check to make sure that the text wraps correctly when the button has more than one line of text, and when it is extra long.
Buttons have three styles:
If the theme has a custom color palette, test that background color and text color settings work correctly.
Now lets test how buttons display together with large texts.
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