For example:
<html>
<head>
<link href="css/style1.css" type="text/css" />
<link href="css/style2.css" type="text/css" />
</head>
<body>
<div>I want to use style1.css within this div<div>
<div>I want to use style2.css within this div<div>
<body>
Is there any posible way to do like that ?
Thank you.
In your two files define different classes of div.
For instance, in style1.css you might have:
div.class1
{
background-color: red;
}
And in style2.css you might have:
div.class2
{
background-color: blue;
}
Then change your code to reflect where you want each style, ie:
<div class="class1">I want to use style1.css within this div<div>
<div class="class2">I want to use style2.css within this div<div>
As you wrote, this is not possible but you can give the div-tags id and format for the id only. So you only have to add one css file which gives you a better overview ,structre and the website is loaded faster.
The HTML Markup
<div id='first'></div>
<div id='second'></div>
and in the css
#first{
background-color:red;
}
#second{
background-color:green;
}
By using id's you ensure that the access is faster than by using classes. If you want to style the content of the div's differently you could also do that.
If I were you, I also would use classes to define which styles go to which div. However I would not use a separate stylesheet for each class. I would combine the two classes into one stylesheet, because like EvilP said, loading two separate css files can be slow.
Also, I would avoid using ids where a class can do the job as effectively, because an id is only used to target one specific element, and a class doesn't have to, but can target more than one element. So a class is more versatile overall.
Related
I'm using bootstrap for a navbar that I like and I use the style.css from bootstrap, but I also want to implement some elements from another framework that has its own style.css. The problem is that the elements appears distorted because the second style rewrites the first.
Is there a way to specify the influence of a style.css?
For example, style_1.css to have influence over:
<header>...</header>
and style_2.css to have influence over:
<main>...</main>
It is not possible to do it directly using those CSS files that are distributed, but you can create namespaces for each CSS framework library (or CSS file) and use that wherever you want to use that framework features.
See How to namespace Twitter Bootstrap so styles don't conflict and Is there any ready to use Bootstrap css file with prefix for more details on how to namespace your style-sheets.
If you're using less, then you can create a namespace by adding a pregfix to bootstrap like this:
.bootstrap-styles {
#import 'bootstrap';
}
/* OR */
.bootstrap-styles {
#import (less) url("bootstrap.css");
}
You can use http://www.css-prefix.com/ to prefix any CSS file and then use it like this:
<header class="bootstrap-ns-prefix> (some bootstrap code inside) </header>
<main class="style2-ns-prefix"> (some other framework/css styles that don't get affected by bootstrap) </main>
EDIT
It does not work automatically, you have to namespace each of your CSS and then use those CSS files instead of the initials. The generator www.css-prefix.com works for me, but it adds some extra classes/namespaces at the beginning/end and before/after each comment; you should check that and correct/delete any errors before you proceed. As I mentioned above, you can use LESS or SASS frameworks to generate those namespaces.
Here is an example of using both Bootstrap and jQuery UI together:
<head>
...
<link rel="stylesheet" href="css/bootstrap_ns.css">
<link rel="stylesheet" href="css/jqueryui_ns.css">
...
</head>
<body>
<button class="btn btn-primary">Test Button</button>
<div class="bootstrap-ns">
<button class="btn btn-primary">Bootstrap Button</button>
</div>
<div class="jqui-ns">
<button id="jqbtn" class="btn btn-primary">jQuery UI Button</button>
</div>
<script type="text/javascript">
jQuery(function($) {
$('#jqbtn').button();
});
</script>
</body>
And the result is this one:
As you can see, all three buttons have the bootstrap button classes btn btn-primary but only the button inside bootstrap-ns container uses the bootstrap styles.
Here you can see a demo page: http://zikro.gr/dbg/html/bootstrap-ns/
Here you can check bootstrap.css and jquery.ui.css generated by www.css-prefix.com and manual cleaned.
I had the same problem and I resolved it like this:
copy the CSS rules you want to use in a specific region.
convert them to SCSS by pasting them in this link: css2scss and then
Click on the arrow (choose SCSS).
copy the SCSS rules result you got, and paste them in this link: scss2css.
wrap the entire SCSS rules with this rule: .wrapper {}
like this:
.wrapper {
a {
color: #007bff;
text-decoration: none;
background-color: transparent;
}
/*all other rules*/
}
click on the 'compile' button and wait until you will get all your CSS.
the above SCSS will result like this:
.wrapper a {
color: #007bff;
text-decoration: none;
background-color: transparent;
}
and so All your other CSS rules will be prefixed with the .wrapper class.
Click download button to download your CSS, and then link it to your HTML
page.
to use this CSS only in certain regions warp that region with a div
and give this div a class "wrapper".
<div class = "wrapper">
<a class = "a_Class_From_The_Downloaded_CSS_File"/>
<!-- put here all other HTML tags you want
and add all the class etc. you want from the
CSS file you created.
it will not collide with other CSS class from other
CSS files because of the div.wrapper tag
-->
</div>
Generally not. However you could use the > selector everywhere:
#divtoApplyTo > a {
color: green;
}
So that just all links in that specific div get changed.
This is not possible. Stylesheets are applied to the whole document and not to subsections of it. Whether an element is affected by the rules is then subject to the used selectors. Following of that, when you want a rule to only apply to elements within <header>, they must begin with header > or header (space).
However, from your comments it follows that rewriting all rules is not an option since it's too many. A solution might be to use a preprocessor like SASS.
Example:
Input (SASS)
header > {
div {
color: red;
}
button {
border: 1px solid hotpink;
}
}
Output (CSS)
header > div {
color: red;
}
header > button {
border: 1px solid hotpink;
}
The idea would be to wrap all rules that should only be valid for <header> into an appropriate block and let SASS rewrite the rules for you.
However, this leads to blowing up the overall file size. Also, one should not forget that frameworks also include global rules. Since something like header > html or header > body is bogus, this solution might still require doing manual changes.
Haven't tried it, but found this: The final fix was to use SASS (recommended by someone off-site), as that allows you to nest elements and then automatically produce the final CSS. Step by step the process is: Applying CSS styles only to certain elements
Concatenate the two Bootstrap files (bootstrap.css and
bootstrap-responsive.css) into bootstrap-all.css.
Create a new SASS file, bootstrap-all.scss, with the content div.bootstrap {.
Append bootstrap-all.css to bootstrap-all.scss.
Close the div.bootstrap selector by appending } to bootstrap-all.scss.
Run SASS on bootstrap-all.scss to produce a final CSS file.
Run YUI Compressor on the final file to produce a minimised version.
Add minimised version to head element and wrap everything I want the
styles to apply to in <div class="bootstrap"></div>.
I am using jsonform (https://github.com/joshfire/jsonform) in order to generate forms from json schema, and the jsonform requires his own css for the form, but i am using another css for my site's template.
Is there a way to apply a css only on a specific tag ? for example only to the html inside ?
I am using rails, so the head is not changing from page to page.
thanks.
If you're using a CSS preprocessor (i.e. SASS, LESS, SCSS, etc.) then it might be an easy job to just indent your custom css under one class/id/tag. You can check this SO question: apply CSS style to particular elements dynamically.
Try this>>>
<link rel="stylesheet" type="text/css" href="theme1.css">
<link rel="stylesheet" type="text/css" href="theme2.css">
Inside theme 1 you would link to certain classes and in theme2 you would link to other classes. Please comment back if you need more help or this is not ideal
for example html
<div id="test" class="testing"></div>
the css would be
#test{color:red;}/*for ids*/
.testing{color:red}/*for classes*/
the styling in the curly brackets can be changed to what you want and the classes and ids can be in any external css if you link your page to it using link rel=
Yes you can. You need to give an ID to the body of your HTML doc if you want to target only that page, or give an ID or class to the element you need to.
<!-- HTML -->
<div class="your-class">
Your content
In the CSS:
.your-class {
your: style;
}
or
<!-- HTML -->
<body id="your-id-name">
<div class="generic-class">
Your content
/* using CSS */
body#your-id-name {
your: style;
}
body#your-id-name .generic-class {
your: style;
}
Hope it helps ;-)
Yes, offcourse there is, that's what CSS is all about.
If you add an ID or a class to the containing element that holds the form, you can add that ID or class to all the CSS selectors in the JSONform css.
for instance:
<div class="jsonform">
{json form goes here}
</div>
and then in your jsonform css, prepend '.jsonform' to all the necessary selectors:
.jsonform input.text {border:none...}
.jsonform input.submit {background-color:...}
I had a look at that jsonform css. I'm amazed that it just uses the complete Twitter bootstrap CSS, there's quite a lot of styling in there that will definitely override your own CSS. I would try to strip out anything that's not directly needed for the form, like body, img, p and h1 declarations.
Maybe the form works fine without the extra styling; you can then apply your own CSS to the form elements...
The CSS included with jsonform is Bootstrap, but the README.md in the /deps directory states that usage of this file is optional. As long as you don't include bootstrap.css in your HTML, you can style the form controls however you'd like/avoid Bootstrap overriding your own styles.
If you want to keep using Bootstrap for jsonform ONLY, you can try "namespacing" the Bootstrap styles using LESS or SASS. Have a look at the first two answers to 'How to namespace Twitter Bootstrap so styles don't conflict' for an idea how to do that with LESS.
I am doing a report and inside the report I have to render emails from different providers, this emails come with their own css (usually inline css but sometimes they apply general styles). I usually use iframes to encapsulate css so it doesn't breaks up mine but I can't use it now.
Is there a way to encapsulate css without the use of iframes?
here is an example of the problem I am having:
<html>
<head>
<style>
// I enclose it to content so it doesn't override the email css
#my_content table, #my_content p {
color: black;
}
</style>
</head>
<body>
<div id='my_content'>
... some stuff ...
<div id='email'>
<html>
<head>
<style>
table {
margin-left: 100cm; // screws up all my tables
}
.... some styles that should only apply inside the email div ...
</style>
</head>
<body>
.... email content ...
</body>
</html>
</div>
</div>
</body>
</html>
I could extract the html structure and just get what's on the body but then not all my emails will look as it should. Also the html must be valid so any suggestions would be great!
You can prepend #email to your css selectors, making them only apply to your div.
For example, change
.classname { display: block }
to
#email .classname { display: block }
Edit: If you have no control over the e-mail CSS as arxanas suggests, consider using LESS. Less is a CSS preprocessor that allows nesting of CSS selectors. If you include less.js, then you can do something like this:
#email {
CSS goes here
}
less.js will parse this and convert it to CSS.
You could try to check the E-Mail css part for collisions with Your own class names.
I just found this post which could be helpful for You:
Listing known CSS classes using Javascript
I am trying to divide a page in 2 parts but with 2 separate css sheets but i do not want to use a frameset (horror), is there a possibility?
Perhaps you could be more specific. It's impossible, of course, to set the background-color property to two different values for the body element or something like that so I'm assuming that you want a section of your page to live inside its own "namespace".
Let's say you have a section with your content in it, and that you want to use a specific css for the content and another for the rest of the page. The easiest solution is to do something like this:
*** style.css ***
body {...}
*** content-style.css ***
#content h1 { ... }
#content ul { ... }
etc
*** yourpage.html ***
headerstuff...
<link rel="stylesheet" href="style.css" />
<link rel="stylesheet" href="style.css" />
bodystuff...
<div id="content">
your content...
</div>
Simply prefix the css selectors with the id of your containers.
A little more information would of been nice but anyways, sure you can. Use two master divs one for each part of your site. The divs will have different classes or id's.
You can use two stylesheets if you like, although I would just use one since it's much more efficient. Here are a few resources about that one two three.
I'm making a web page where I want the color of the font to be red in a paragraph but I'm not sure how to do this.
I was using FrontPage for building web pages before so this HTML stuff is really new to me. What is the best way to do this?
<p style="color:red">Foo</p>
Or preferrably:
<p class="error">Foo</p>
Where "error" is defined in your stylesheet:
.error {
color: red;
}
The preferred way to do this is using Cascading Style Sheet (CSS). This allows you to edit the visual aspects of the site without having to deal much with the HTML code itself.
Explanation :
<[tag] style="[css]"> Content </[tag]>
Where [tag] can be anything. For example "p" (paragraph), "span", "div", "ul", "li".. etc.
and where [css] is any valid CSS. For example "color:red; font-size:15px; font-weight:bold"
The recommended way to add style to a html element is by assigning it a "class" (a identifier that can be repeated on the document) or a "id" a unique identifier that shall not be repeated in the document.
For example:
<[tag] id="element1" class="red"> Content </[tag]>
<[tag] id="element2" class="red"> Content </[tag]>
Where tag is any html valid tag. id is a unique arbitrary name and class is an arbitrary name that can be repeated.
Then in the CSS (inside the tags of your document):
<style type="text/css">
.red {
color:red;
}
#element1 {
background-color:black;
}
</style>
For this example and to keep it simple to new users I named the class "red". However class="red" isn't the best example of how to name . Better to name CSS classes after their semantic meaning, rather than the style(s) they implement. So class="error" or class="hilight" might be more appropriate. ( Thanks to Grant Wagner for pointing that out )
Brief CSS Explanation :
Since most of the answers you're getting are all mentioning CSS, I'll add a small guide on how it works:
Where to put CSS
First of all, you need to know that CSS should be added inside the tags of your document. The tags used to define where the CSS is going to be are:
<style type="text/css"> <!-- Your CSS here --> </style>
This is called embedded CSS since it's inside the document. However, a better practice is to link "include it" directly from an external document by using the following tags:
<link href="file.css" media="all" rel="stylesheet" type="text/css"/>
Where file.css is the external file you want to include into the document.
The benefits of using the "link" tag is that you don't have to edit in-line CSS. So lets say if you have 10 HTML documents and you want to change the color of a font you just need to do it on the external CSS file.
This two ways of including CSS are the most recommended ways. However, there's one more way that's by doing in-line CSS adjustments, for example:
<[tag] style="<!-- CSS HERE -->"> Content </[tag]>
CSS General Structure
When you code write CSS, the first thing you need to know is what are classes and what are id's. Since I already mentioned what they do above I'm going to explain how to use them.
When you write CSS you first need to tell which elements you're going to "select", for example:
Lets say we have a "div" element with the class "basic" and we want it to have a black background color, a white font, and a gray border.
To do this we first need to "select" the element:
.[identifier] { }
Since we're using a class we use a "." in front of the identifier which in this case is: "basic", so it will look like this:
.basic { }
This is not the only way, because we're telling that ANY element that has the class "basic" will be selected, so lets say we JUST want the "div" elements. To do this we use:
[html-tag].[identifier] { }
So for our example it will look like this:
div.basic { }
Now we've selected the "div" with the class "body". Now we need to apply the visual style we wish. We do this inside the brackets :
div.basic {
background-color:black;
color:white;
border:1px solid gray;
}
With this, we just applied successfully a visual style to all "div" elements that have the "basic" class attached.
Remember this doesn't just apply for "class" it also applies for "id" but with a slight change, here an example of the final code but instead of a class we'll just say it's a "id"
#unique-basic {
background-color:black;
color:white;
border:1px solid gray;
}
For a complete guide to CSS you can visit this link:
http://www.w3schools.com/css/
Remember:
Keep your HTML Code clean and use CSS to modify ANY visual style that's needed. CSS is really powerful and it'll save you a lot of time.
<style type="text/css">
.myCSS
{
color:red
}
</style>
<div class="myCSS">text</div>
<span class="myCSS">text</span>
<p class="myCSS">text</p>
<!-- table elements..... -->
<td class="myCSS">text</td>
<tr class="myCSS">text</tr>
<p style="color:red">Your Text here</p>
But as others have by now said in more and better words: Even better than the above would be to use classes or IDs and assign the CSS-attributes to that instead of using the inline style.