Title: HTML5 Elements – Display Block
Last modified: August 20, 2016
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# HTML5 Elements – Display Block
* [jumpswimmer](https://wordpress.org/support/users/jumpswimmer/)
* (@jumpswimmer)
* [14 years, 10 months ago](https://wordpress.org/support/topic/html5-elements-display-block/)
* I built a child theme locally using Toolbox and was in for quite the surprise
when I uploaded it to a server and ran it through crossbrowsertesting.com. My
header was collapsing in certain browsers causing the navigation to be unusable.
A few hours of headaches later I finally realized that the header element isn’t
set to display: block anywhere in the Toolbox CSS (that I can see). I made the
change and it seems to be fine for the most part now (Firefox 3.0.6 and Ubuntu
8.10 don’t quite get it right).
* Why aren’t all the HTML5 elements set to display:block? That’s one of the first
things I learned about when starting into HTML5.
Viewing 4 replies - 1 through 4 (of 4 total)
* [Lance Willett](https://wordpress.org/support/users/lancewillett/)
* (@lancewillett)
* [14 years, 10 months ago](https://wordpress.org/support/topic/html5-elements-display-block/#post-2202143)
* Hi jumpswimmer,
* Toolbox does set the “header” element to `display: block` using the `#branding`
selector in the CSS file.
* Thread Starter [jumpswimmer](https://wordpress.org/support/users/jumpswimmer/)
* (@jumpswimmer)
* [14 years, 10 months ago](https://wordpress.org/support/topic/html5-elements-display-block/#post-2202145)
* Thanks for the reply Lance!
* I looked through style.css in my copy and in all previous versions of Toolbox
listed here:
[http://themes.svn.wordpress.org/toolbox/](http://themes.svn.wordpress.org/toolbox/)
* #branding doesn’t appear in any of them.
* I was about to post this, then I noticed toolbox/bonus. There is a file called
sample.css in there that does reference #branding. I hadn’t touched that file
previously as I saw no need to go into bonus features of something that was brand
new to me.
* Anyway, it’s a problem I won’t run into again, but new users of the theme might
get lost in the same way I did.
* [Lance Willett](https://wordpress.org/support/users/lancewillett/)
* (@lancewillett)
* [14 years, 10 months ago](https://wordpress.org/support/topic/html5-elements-display-block/#post-2202148)
* Thanks for your feedback, I know we have some other small fixes to Toolbox —
so we’ll probably update the WP.org version soon.
* [Peter Wooster](https://wordpress.org/support/users/pkwooster/)
* (@pkwooster)
* [14 years, 5 months ago](https://wordpress.org/support/topic/html5-elements-display-block/#post-2202249)
* As of version toolbox 1.3 the new html5 block elements still are not set to display:
block. Particularly annoying are header and hgroup. This shows up as backgrounds
that do not display in IE8 or lower.
Viewing 4 replies - 1 through 4 (of 4 total)
The topic ‘HTML5 Elements – Display Block’ is closed to new replies.
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* 4 replies
* 3 participants
* Last reply from: [Peter Wooster](https://wordpress.org/support/users/pkwooster/)
* Last activity: [14 years, 5 months ago](https://wordpress.org/support/topic/html5-elements-display-block/#post-2202249)
* Status: not resolved