I was surfing and saw this css property which I have never seen or used before. I think it is related to Internet Explorer, and the structure is something like this:
#element{
behavior: url(something.htc);
}
What does the behavior property do? How would I use this property?
I did find this w3 Documentation, but it's not particularly clear what it does.
It is Microsoft Extensions to CSS
.htc files are commonly used in .css files using an IE specific property called behavior, using this along with the .htc file allows the browser to run JavaScript code which is whats contained within the file.
what it does?
Sets or retrieves the location of the Dynamic HTML (DHTML) behaviorDHTML Behaviors.
.htc Extention
The script resides in an HTC (HTML Component) file. HTC files have the extension .htc, and are HTML files that contain a script plus a set of HTC-specific elements that define the components.
- History of behavior
Syntax
behavior: url(sLocation) | url(#objID) | url(#default#behaviorName)
Property values
url(sLocation)
Script implementation of a DHTML behavior, where sLocation is an absolute or relative URL.
url(#objID)
Binary implementation of a DHTML behavior, where objID is the ID attribute specified in an object tag.
url(#default#behaviorName)
The application's default behavior, identified by its behaviorName.
Useful Links
Microsoft
Site Point
CSS3.COM
Dottoro
CSS Standards Support
htmlcss.wikia.com
Microsoft says it is no longer supported in IE 10!
It lets you use CSS to attach a script to a specific element in order to implement DHTML (Dynamic HTML) components.
Internet Explorer versions 5 and later support the behavior property.
Internet Explorer 8 supports Vendor specific format of -ms-behavior
For more info. refer this link.
Related
I would like to accomplish that
.html.erb file, which calls class in the form “class=”, can read the all class defined in CSS files in app/assets/stylesheet, in development environment.
In app/assets/stylesheet, 30 .css files exist and all classes are defined in the files separately.
I think the problem exists in some configuration rather than the code mistake because changing filename of CSS in assets/stylesheet solves the problem.
In my case, "app/assets/stylesheet/admin/users.css" does not work, while "app/assets/stylesheet/admin/members.css" does. (any name except "users.css" is okey).
I attempted the following.
Super reloading the target page in some browsers (Chrome, Opera , FireFox).
Rebooting the OS .
Removing tmp/cache.
Removing “.DS_store” files in app/assets and app/assets/stylesheet.
Writing
"config.assets.debug = True"
in the configure/environments/development.rb
I would like to get information about the question “Why just changing the filename of CSS in assets/stylesheet cause reading error.”
When writing a Firefox web extension it's possible to use a default css for browser or page actions so that they are styled like other browser UI components. It's done by inserting:
"browser_style": true
in the extension manifest. Styles like panel-section-footer-button become available.
My question: How can you know how to use the default styles, there doesn't seem to be an official source or description of them?
Related:
The css in built-in resource chrome://browser/content/extension.css.
This popup example on Mozilla site, which uses some default styles..
Using "browser_style": true results in the chrome://browser/content/extension.css file being applied to your HTML (on OSX chrome://browser/content/extension-mac.css is applied instead).
Mozilla has a Style Guide which you can peruse to see how various elements and classes are used. The link to this Style Guide is in the browser_style entry within the "Syntax" section of the browser_action documentation page. A similar link is in the same location on the page_action MDN documentation page. Personally, I would find it more appropriate for the information contained in the Style Guide to be hosted directly on MDN rather than on firefoxux.github.io.
If you are just interested in the elements and classes, you can find examples under the Components section.
Note: Under some conditions, Firefox also attempts to apply chrome://browser/content/extension-win-panel.css or chrome://browser/content/extension-mac-panel.css neither of which exist.
I have a site whose stylesheets are becoming overwhelming, and a full 50% to 90% or so is not used on certain pages. Rather than have 23 separate blocking CSS sheets, I'd like to find out which are being used on the page I'd like to target, and have those exported into one sheet.
I have seen several questions that recommend "Dust me selectors" or similar add on which will tell what selectors are and are not being used; but that's not what I want. I need to be able to export all used styles from all sheets for that particular page into one new sheet that can be used to replace the 23 others. The solution should be able to support a responsive website (media calls). The website page I'm targeting is: http://tripinary.com.
I've found: https://unused-css.com but this is a paid service and I need free;
The next closest thing I've come across is http://www.csstrashman.com/ but this does not look at stylesheets. In fact, it completely ignores them and ultimately I'm having trouble with the responsiveness of the site. Many times as well, this site just crashes.
I don't mind a programmatic solution if someone has had to do this before and can recommend a direction.
(deleted my comment to RwwL answer to make it a thorough answer)
UnCSS, whether node.js or as a grunt or gulp task, is able to list used CSS rules by an array of pages in an array of Media Queries.
uncss: https://github.com/giakki/uncss
grunt-uncss: https://github.com/addyosmani/grunt-uncss
gulp-uncss: https://github.com/ben-eb/gulp-uncss
Multipage:
You can pass files as an argument to any of the 3 plugins, like:
var files = ['my', 'array', 'of', 'HTML', 'files'],
options = { /* (…) */ };
uncss(files, options, function (error, output) {
console.log(output);
});
Avoid:
urls (Array):
array of URLs to load with Phantom (on top of the files already passed if any).
NOTE: this feature is deprecated, you can pass URLs directly as arguments.
Media Queries and responsive are taken into account:
media (Array):
By default UnCSS processes only stylesheets with media query "all", "screen", and those without one. Specify here which others to include.
You can add stylesheets, ignore some of them, add inline CSS and many other options like htmlroot
Remaining problems:
1/ Conditional classes if you use them for IE9-. They obviously won't be matched in a WebKit PhantomJS environment!
HTML:
<!--[if IE 9]><html class="ie9 lte-ie9" lang="en"><![endif]--> <!-- teh conditional comment/class -->
CSS:
.ie9 .some-class { property: value; ] /* Only matched in IE9, not WebKit PhantomJS */
Should they be added by hand or script to the html element in testing environment? (how it renders is of no importance)
Is there an option in uncss?
As long as you don't style with :not(.ie9) (weird), it should be fine.
EDIT: you can use the ignore option with a pattern to force uncss to "provide a list of selectors that should not be removed by UnCSS". Won't be tested though.
2/ Scripts that will detect resolution (viewport width) and adapt content to it by removing/adding it or adding a class on a container. They will execute in PhantomJS in desktop resolution I guess and thus won't do their job so you'll need to modify calls to PhantomJS or something like that... Or dig into options or GitHub issues of the 3 projects (I didn't)
Other tools I heard of, not tested or barely or couldn't test, no idea about the MQ part:
in grunt-uncss readme, the Coverage part
ucss from Opera (there's already an ansswer here, couldn't make it work)
Helium
CSSESS
mincss
Addy Osmani has countless presentations of 100+ slides presenting awesome tools like this one: https://speakerdeck.com/addyosmani/automating-front-end-workflow (you'll regret even more that days are made only of 24 hours and not 48 err wait 72 ^^)
How about the CSS Usage plugin for Firebug?
Steps:
Visit your page in Firefox
Click "CSS Usage" tab in Firebug
Click the Scan button
Click the bold file name
Save page of CSS selectors to disk
Here are some screen shots and walk through. Not sure about media queries or if it'll work on your site, and it'll probably not keep -webkit etc, but maybe it'll get you part of the way there.
Opera Software released a CSS crawler on Github that claims it can find unused and duplicate selectors. It might do the trick if you're comfortable with a command-line tool. https://github.com/operasoftware/ucss
You Can Check in Google Chrome by doing inspect element (F12) . The unused CSS has Line over the tags.
If you wanted, you could try to build a script that runs on a (non-production) server that goes through every css rule, removes it from the stylesheet, loads the page using something like phantomjs, and checks to see if anything changed from the last time it loaded the page. If so, then put the css rule back, if not, then leave it out and move on to the next rule. It would take a while to run, but it would work. You would also have to setup an instance of your server that does not use caching for it to run on.
Try using this tool,which is just a simple js script
https://github.com/shashwatsahai/CSSExtractor/
This tool helps in getting the CSS from a specific page listing all sources for active styles and save it to a JSON with source as key and rules as value.
It loads all the CSS from the href links and tells all the styles applied from them
You can modify the code to save all css into a .css file. Thereby combining all your css.
CSS files not rendered in IE 9 and 10 but works good in compatibility mode.
I am the following error get "SEC7113: CSS was ignored due to mime type mismatch" in IE 10 .
wherein i don't get a content-type in my response header!
Further this is on my local.
Any suggestions could be appreciated.
It has an answer, summary would be:
As due to MIME type mismatch css was ignored in IE 9 and 10. The MIME type can be correct by utility called File TypesMan It is freeware created by NirSoft. It turned out that the MIME type of .css had been changed to text/plain, preventing IE from rendering my styles. using FileTypesMan to change it back to text/css fixed the problem.
Download FileTypesMan from the NirSoft site. Use the links near the bottom of the page to select the correct version for your operating system (there are different versions for 32-bit, 64-bit, and Windows 98/ME).
Unzip the files to a local folder, and double-click FileTypesMan.exe.
When FileTypesMan has finished listing all file types, scroll down in the top pane to find .css.
Double-click to edit the settings.
Change the value to text/css in the MIME Type field in the dialog box that opens.
Click OK. Job done.
IE 10 should now behave itself (well, at least as far as rendering style sheets is concerned).
Not my work: Its not my own search, you can see this here: https://stackoverflow.com/a/18791928/1762944
I hope this fixed you!
I was wondering that you are not writing type="text/css" but you said, that you are! So I found this the next helpfull article! It has the same issue as yours. SEC7113: CSS was ignored due to mime type mismatch
I just did a simple Google search for the issue, and this was the first result! You should have searched for the issue.
Please ensure that the CSS file gets delivery with the correct "Content-Type" from the server. It must be "text/css". Use the developer console to determine the current type.
Potentially you need to adjust/create the MIME type mapping (e.g. for httpd).
hth
Try to specify the attribute type="text/css" in your tag. Place your style tag in <head> section.
I was having similar problem with an embedded micro-controller (not a lot of control over the server changing content type). Not sure if this applies but I found going into Settings->Compatibility View Settings and adding the IP (site) address the CSS was accepted and the page rendered properly.
Using developer tools, I can amend a css file for a site I'm currently viewing in a browser.
I want to, effectively, do the same - but instead of amending the css file, loading a local css file, just for that particular domain.
Another way of phrasing it: "When any page of stackoverflow.com is loaded, load C:\test.css to the browser".
Yes, it's possible. Have a look at http://userstyles.org.
Userstyles.org offers CSS files for usage with the extension "Stylish", and Stylish recently announced that they are becoming evil (https://forum.userstyles.org/discussion/comment/109966/#Comment_109966) and can therefore not be used anymore.
One can use the styles with greasemonkey, but then the activation for various websites doesn't work anymore (the CSS is converted into a JS file and the list of sites where it should be applied onto is hardcoded inside an if-statement in that script). I.e. in order to use e.g. "dokuwiki highlight and full width" on a site using dokuwiki but not being http://dokuwiki.org, you have to edit that if-statement and reload.