Is it possible to alter the CSS of an iFrame? [duplicate] - css

This question already has answers here:
Override body style for content in an iframe
(11 answers)
Closed 9 years ago.
I would like to add, remove, and adjust the CSS of iFrame. In particular I am looking to to this to Disqus comments which embeds their comments into an iFrame on the page.
If I am allowed to modify the CSS of an iFrame is the only risk that I am susceptible to them (in this case Disqus) updating the CSS classes and ID's?

No, you can't.
You can edit it via JavaScript, but the iframe content and its parent need to be on the same domain, if not you will not be able to do it

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Can I change the parent of an element in css? [duplicate]

This question already has answers here:
Is there a CSS parent selector?
(33 answers)
Closed 2 years ago.
I have:
<div id="header"><button id="button1"/></div>
<div id="footer"></div>
Can I change (just in css, not js) the layout so button1 belongs to footer?
If this is not possible are there alternatives? (such as flex order allow dynamically to change the order of elements). My goal is to propose many different themes of an application without to modify the DOM layout (e.g. some people want the button to be in header, other prefer in footer).
Can I change (just in css, not js) the layout so button1 belongs to footer ?
In a word, no.
What you are trying to do is change the actual structure of the page, which is not what CSS is for. CSS is (for the most part) about controlling the visual aspect of a web page, and HTML is for the structure. You could, I suppose, apply CSS styling to make the button appear as though it were a child of #footer (you might set position: relative and give it the appropriate offset so that it appears where it would have appeared if it were), but that’s hardly a reliable solution.
If you find yourself needing to do this, perhaps pure CSS is not really the appropriate solution? Could you offer the themes in the form of styles and scripts (where you could use the script to move the button)? Or perhaps offer HTML templates to be chosen from (e.g. whether the button should be in the header or footer), and then apply the CSS theme on top of that.

How to identify where my CSS selector is being overriden from? Timeline.js [duplicate]

This question already has answers here:
How are the points in CSS specificity calculated
(7 answers)
Why are my CSS properties being overridden/ignored?
(5 answers)
How can I detect overwritten css properties?
(3 answers)
Closed 3 years ago.
I am using timeline.js to add a timeline to my page. Unfortunately the width of an element with class .tl-slide-content is set somewhere I cannot see. As a result, the width is 940px or 448px depending on viewport width. This is causing issues with how the text next to the photo is being displayed.
I have tried selecting the element with every ascendant class available, including any IDs that I could find. Still there is no change and I am unable to figure this out.
What I want to know is this:
what is 'element' in this context?
are there tools in the developer console that enable me to find where width is being set to 940px?
If anyone has any experience with this particular library and could point me in the direction of the appropriate selectors that would be fantastic
I have tried putting my stylesheet after the timeline, I even tried putting it right at the bottom of the body tag. Still no change.
The 'element' selector is displaying all the properties set by the inline styling within the HTML file itself. Inline styles supersede all other styling because of cascading (first to last). Last iteration is displayed.
You can see the word inline to the right of the 'element' box.
If you do not have write access to the HTML file you are working with then you may need to use !important after your width: 100%. This is really a last resort.
My suggestion is to look at their CSS source code:
https://github.com/NUKnightLab/TimelineJS/tree/master/source/less
Overwriting their CSS would just bloat your code.
Duplicate the library(if you intend to use it again) and then use the duplicate to internally mess with their source code to achieve the results you want.
I know I didn't give you a direct answer, but libraries typically have their own conventional styling, etc. without looking at the source you're just guessing...

How to apply css for html page in Iframe? [duplicate]

This question already has answers here:
How to apply CSS to iframe?
(28 answers)
Closed 6 years ago.
I've a DIV, inside that i've Iframe. In that Iframe i'm loading the Html page. So I want to apply the css for that Html page.
You want to change the style inside the Iframe... It is no possible, when you show an Iframe you can't modify his style.
If yu create the Iframe, apply the style modification before to show in any page

CSS: selecting an element only if it contains a specific element [duplicate]

This question already has answers here:
Is there a CSS parent selector?
(33 answers)
Closed 9 years ago.
I am creating a print stylesheet and would like to hide all figure tags only if that tag contains an iframe, which happen to be embedded YouTube videos. If the figure tag contains anything else (i.e. an img), I want the tag and its contents to still be shown on the printed page.
I know that I could simply apply a class of "video", for example, to my figure tag where appropriate, but I want to see if there is a way to accomplish this via CSS without resorting to adding classes throughout my site. Also, even though I know they exist, I am not looking for a jQuery solution.
Thank you!
You are looking for a parent selector
CSS3 has none, but CSS4 has one that is like selecting using $.
Here are some similar questions with similar results:
Is there a CSS parent selector?
CSS Parent/Ancestor Selector
Complex CSS selector for parent of active child

Controlling browser tooltip(title) in html [duplicate]

This question already exists:
Closed 10 years ago.
Possible Duplicate:
Styling native tooltip from title=“Tooltip text”
Is any way to control browser tooltip in CSS.
like adjust height and width .. something
-spk-
Not for the built in tooltips with title, no.
You can create tooltip-like constructs of your own, though, by using a div (or anything) that is hidden until the user hovers over your element. See the :hover pseudo-class.

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