I have a webpage with a main parent div tag
<div class="mainDiv">...</div>
that contains a very large number of child elements. The page has an external stylesheet with mostly element selectors instead of class selectors:
Eg.
img {...}
instead of
.myImgCls {...}
I need a stylesheet that contains the global (page) css applied only to my mainDiv div tag, so that I can easily inject my mainDiv html on any page, along with that new stylesheet, without interfering with the new page's element selectors.
So, am basically looking for a tool that will generate something like:
.mainDiv img {...}
for everything inside my mainDiv.
Doing this manually is out of the question, because of the large number of elements in mainDiv.
To further elaborate: need this for jplist, which comes with a standard jplist.demo-pages.css; however instead of styling only the jplist instance, that standard jplist.demo-pages.css contains mostly element selectors so if I want to directly add a standard jplist instance on a page, I'd have to use jplist.demo-pages.css and that would interfere with my page's original stylesheet.
If you're looking for an easy way to nest all those elements within the main div, you could try Sass:
.mainDiv
// Child selectors go here
Note: Indentation is important.
Related
I have some HTML as follows ( you can assume closing tags )
<ion-content>
<ion-tab>
The problem is, when the DOM is created, the HTML5 tag creates a div which I cannot edit using CSS
It becomes as so
<ion-content>
<div class="foo">
<ion-tab>
I need to edit the CSS of the div whose class is "foo", however, if i change the CSS of foo, i change the CSS of all the classes using "foo".
How do I specifically apply CSS to that specific div when I dont create it myself?
With the small amount off details you have given us, all I can do is refer to these CSS Selectors.
There are number off ways to style a specific element. All have been explained in detail in the link I have given you.
Edit: CSS Selectors explained in detail.
There are several ways to change the style of <div class="foo">.
You could give the div an (extra) #id or class. This makes it able to apply certain styles, just you would do normally, to this specify element.
Another option would be parent child {} where you could style all the children within parent. Note: you could add '>/+/~' to be more specific of the place of child within parent.
A third option would be to specify at what place the div is within its parent using :nth-child(n) or nth-of-type(n).
As I said before, there are many ways to style a specific element. Please take a look at the link I provided.
I have a page where I am reading an HTML from email.
Sometimes, the text which comes from the email has HTML and CSS and it changes my page style completely.
I don’t want my page style to be impacted because of this. How do I read the HTML and CSS strictly inside a particular div (box) and not let the page get impacted by this?
you have to write your css using some parent > child format. You might have to use !important.
May be you are using some kind of common selectors like "a", "p", "div". In these cases we can prevent the overriding by using parent class/id or with "!important.". I will not recommend the second one.
Ex. using parent className:
.parent-classname p{
/*style here*/
}
put that div in iframe so it behave like a seperate window so your html content not effected by loadded css.
You can use <iframe></iframe> tag instead of the <div></div>. Using Parent>Child Css format will also help make your styles more unique and protect them from being overridden.
I am working on a project which is completely done by HTML5,MVC 4,CSS 3, JQuery, LINQ. There are a lot of ui,li and other html controls and we have done styles for those elements.
Now i have a situation that i must include a JQ Grid (http://www.trirand.com/blog/jqgrid/jqgrid.html) , we were using our own client side grid. Now what the problem is if i use the style sheet of the JQ Grid on the page, there is a possibility to get affected to other element also. Anyway i am gonna use that particular grid inside a div element i need that style sheet should be affected to that the elements which all are inside that div.
Is there any possibilities?
(I wonder if this is possible in this way ;)
<div id="jqgridcontainer" stylesheet="styles/jqgrid/jqstyles.css"> my ui elements here </div>
I know its not possible in this way )
NB: editing http://www.trirand.com/blog/jqgrid/themes/redmond/jquery-ui-custom.css[^] by adding "jqgridcontainer" div id to all the element css is not possible.
No you can't add css file to one div, you can only add style to the all document.
The only way i see to use css file to only one part of your page is to put your grid in an iframe (which is not really good...)
You can't do <div id="jqgridcontainer" stylesheet="styles/jqgrid/jqstyles.css">. If jqstyles.css is not a big file you can change the div{...} rules in it with div.jq {...} and add class jq to your divs that you want to use jq styles. If jqstyles.css is so big that you can't go through it all, give your divs, which you want to have your style, a class like 'myDivClass' and change your css to div.myDivClass {...}. You may need to mark your rules as !important or just reference jqstyles.css first and your css 2nd..
Use ids and classes properly to avoid all the division to get the same property..
Here is a difficulty I am trying to solve. I am working inside a client's page to develop a scroller interface. Basically, I cannot change the doctype, the surrounding elements and the stylesheets or scripts that are already in the client's page and I have to make my little block of code "fit" inside this. This is common for web developers.
The tricky part now is that some img elements inside my block are actually being targeted by a CSS rule inside the inherited client's stylesheet (which, of course, I cannot remove or change). It would be too long to explain why here in this case I actually can't use more specific CSS rules myself to compensate this, but it's a fact. So my question is : is there a way to prevent a HTML element from being targeted by a CSS rule other than creating another rule or deleting the rule? The difficulty is that a rule like
.containter1 .containter3 { ... }
will target an element inside :
<div class="container1">
<div class="containter2">
<div class="containter3">Element
...
Elements inside the page don't make "walls" for CSS rules, which "jump" over containers to target elements. So a rule like
img { ... }
will target any img tag. The only way I know to compensate this is to create a more specific CSS rule targetting the precise img to protect. But I cannot do that here. Is there a way to get the same result without creating a CSS rule, only by adding HTML?
/* EDIT TO CLARIFY */
I know CSS rules, specificity, inheritance, etc. My question was more pragmatic. Consider this example to clarify the problem : imagine you have a client's stylesheet that you can't touch and that defines the following general rule:
img { display:none; }
The problem is that you cannot set a corresponding generic rule to do the opposite, like :
img { display:not-none; }
because there is no such thing as the opposite to none. The opposite of "none" can either be "inline", "block", "inline-block", and so on.
So basically, this means that the first generic rule forces you to explicitly define the display property for each and every img in your page. And that sucks. So I was trying to find a hack to solve situations like this (my actual problem is even worst than this, believe me, but this example is much clearer and quicker to explain).
If you're saying you want to prevent targeting without changing any code, then no, that's obviously not possible.
In-line styles always over-ride style-sheet rules ( unless they're using an !important tag, then you'll need to also use it).
You should be able to reset whatever elements you need, using syntax from your favorite CSS reset. Here are some options:
http://www.cssreset.com/
So, something like -
<div style="border:0 !important;padding:0 !important;margin:0 !important;height:auto;"></div>
is your best bet.
The only way you can change CSS for specific element is modification of existing styleshits or creating new style which is more specific and will overload other styles.
and I have to make my little block of code "fit" inside this.
Once you have make some block of code, you can put style tag inside that block of HTML code like this, for instance:
<div id="block_of_code_available_for_modification">
<style type="text/css">
//css code which will fix styles of your content without influencing other elements on a page.
</style>
</div>
Or, if you have just a few elements you need to fix styles for, you can use style attribute of HTML elements (once you can set modify HTML, you can always add something like below... Well, the same as adding style tag). Priority of css properties inside style attribute is the highest one. Except if there is no !important in some previouse styles:
<img style="any css properties you need" src="..." />
The default display value for an img element is inline-block. If you want to reset the display value for all images, why not use that?
If you've got multiple different types of elements that are being set to weird values, then the problem is maybe a bit more complex as you'd need to consider which elements to set to what display type. But all HTML elements do have well-defined default display types, so it shouldn't be too hard to reset them all.
img {display: inline-block;}
span, a, etc {display:inline;}
div, etc {display:block;}
... etc ...
If it comes down to it, you could just use one of the reset CSS scripts that are available, to set everything back to the correct defaults.
No there is no way you can stop other rules from getting applied on a particular element.
you have to redefine all those rules for that html element so they will overwrite all the other rules.
On my page, I have custom styled hyperlinks, and I also have alot of hyperlinked images. I don't want these custom styles to appear on the hyperlinks that only contain images. Instead of adding a separate class (i.e "nostyle") to each hyperlinked image, can I somehow target the hyperlinked images from my stylesheet?
You cannot select the parent of a matched item in CSS directly. There are workarounds with js (e.g. Searching elements and applying class attributes to their parent nodes) but seems a bit clumsy. You would rather refactor your document structure to find out a slicker solution.
sure, just use
a img {
// your style here...
}
if you want to target only the images within a certain class of links, use
a.yourclass img {}
Based on what it sounds like you're asking for the answer is no. You can't go backwards in the CSS only forwards.
As Theo.T mentioned, you could have a JS work-around.
One idea is to do an element innerHTML check to see if the element has an <img> tag inside it and if it does, change the element.className = "nostyle"; but that's a messy workaround and by the time you get the syntax right in JS (and cross-browser) you could have re-factored your document.
no need for a anchor class.
a[rel="image"] img {}