Byrne: Post comment button is not visible
Quick summary
On mobile, the "Post comment" button is not visible. You have to hover or press over it to appear. I was able to reproduce it on Simple sites.
On Atomic sites, the comment form in mobile are different than the come in simple sites.
Steps to reproduce
- Activate Byrne theme on a simple site.
- Visit a post or page with comments enabled on a mobile device.
- You will notice that the Post Comment button is invisible, you'll have to press over the area for it to show up.
Video recording:

What you expected to happen
The "Post Comment" button should be visible.
What actually happened
The "Post Comment" button was invisible.
Context
Chat: 34145071 Followup: 4864792-zen
Simple, Atomic or both?
Simple
Theme-specific issue?
Byrne
Browser, operating system and other notes
No response
Reproducibility
Consistent
Severity
Most (> 50%)
Available workarounds?
No but the platform is still usable
Workaround details
You can provide the following CSS code.
/* Style post comment button SS-xxxx-zen */
.wp-block-post-comments input[type=submit] {
border: 1px solid #ccc;
color: #fff;
background: #000;
}
Came across a similar issue. Unsure if it's related – if it's a separate issue, let me know and I'll report it separately. (cc @Robertght)
Also in the Byrne theme, the "Donate" button (on the Donations Form block) has a white background with white text until hovered over. This is particularly troublesome, as the button is inactive (and can't be hovered over) until a donation amount is specified – until then, there's absolutely no way to see the "Donate" button.
It looks like the variable used to define the background color for buttons isn't set, based on what I see in the browser console:
--wp--custom--button--color--background is not defined
Workaround CSS:
.wp-block-button__link {
background: #000000;
}
Context: 5297118-zd-woothemes
Another instance of this here: 36298657-hc Follow up ticket: 5445832-zd-woothemes
Another report in 5616057-zen
Support References
This comment is automatically generated. Please do not edit it.
- [ ] 4864792-zen
- [ ] -zen
- [ ] 5297118-zen
- [ ] 5445832-zen
- [ ] 5616057-zen
- [ ] 5912717-zen
- [ ] 5984017-zen
- [ ] 6008739-zen
Came across another instance in 5912717-zd-woothemes. Gave the CSS below as a more specific counter to the CSS already being used with the missing variable:
.wp-block-button .wp-block-button__link:not(:is(:hover, :active, :focus)) {
border-color: #000000;
color: #ffffff;
background: #000000;
}
5984017-zd-woothemes Provided the CSS workaround.
Another here: 6008739-zen Also noting on related issue here. CSS workaround provided.