I'm using twbs bootstrap 3.3.6 with Meteor and trying to style a <fieldset>.
However when I use the Chrome inspector it says that the style is coming from bootstrap.css even though I have tried using class-specific and id-specific css.
My style sheet is in the application root, as suggested by some answers.
I'm very new to meteor and css so I could be making a novice error.
Otherwise, what's the best practice to override bootstrap css settings?
Generally if you want to override the css you should put your css file after all of the other files like the bootstrap css because css starts from top to bottom so the bottom lines are the ones that will be executed, example:
<link rel="stylesheet" href="css/bootstrap.min.css" />
<link rel="stylesheet" href="css/your-css.css" />
Also you can add !important at the end of every css line to give that style the top priority no matter of the line index, example:
.someclass {
color: red!important;
}
You can either override the specific property on the same class in your css...
.btn {
background-color: #fff !important;
}
...create an inheritance map so that it only applies to the element inside another specific element...
div.classForSpecificContainer btn {
background-color: #fff !important;
}
or specify your own class and add it to the element in question
myOverrideClass {
background-color: #fff !important;
}
The.. important part is that you use !important; to prevent Bootstrap from overriding it. That will generally solve the problem even if the CSS files load in the incorrect order, but not always. I have made a habit of prefixing my CSS files in the same folder with z- to make sure they get loaded last if I'm using something like Meteor that merges and compresses the CSS.
This seems to be a common problem in Meteor because of the way their build injects the merged stylesheet into the top of the html <header> instead of the bottom. There is a merged PR that looks like it will be available in 1.6.2 that allows you to put a pseudo tag anywhere in the <head> you want the merged css injected.
Example: proposed availability in 1.6.2 - PR already merged
<head>
<link rel='stylesheet' type='text/css' href='some-cdn.bootstrap.css'/>
<meteor-bundled-css/>
</head>
That will work once the merged PR is included in the next build.
Until then...
SOLUTION 1: If you're using the bootstrap LESS or SCSS files, you can just import it into your client/main.less or client/main.scss file and then import your override file after this. It looks like you're using pre=compiled css though, so move to SOLUTION 3.
SOLUTION 2: Use !important on the end of your lines... BAD not recommended practice. If you use important you break the cascade.
SOLUTION 3: Put you third-party library overrides files in your public folder and manually <link> it below the bootstrap <link> in your head. I suggest this for now.
Related
Sorry if this is a silly question, I'm completely new to bootstrap and ASP.NET.
I'd really like to change the nav-link colours for my web application but applying inline CSS and changing the bootstrap.css is not working. According to inspect all CSS for the nav-links are being overridden by Navbar.less
Screenshot of inspect:
Bootstrap v3.4.1
Of course you should be compiling bootstrap's files combined with your style to make a perfect match, taking advantage of bootstrap variables, and overriding them in case of need. You can compile it automatically when saving using editor extension or other way you choose.
I assume you are using bootstrap 3 because it uses less files.
main.less <-- your file
#import "path/to/bootstrap.less";
// your overrides here: (see file variables.less)
#navbar-default-color: white;
#navbar-default-bg: pink;
// and also
.my-primary-border {
border: 1px solid #brand-primary;
}
// and rest of your styles.
my-html.html
<!-- main.css is automatic output of main.less -->
<link rel="stylesheet" href="main.css">
If you're using bootstrap 4/5 it's the same idea. See here
I don't think it is possible, but I will ask anyway:
Can I apply an external css file (Bootstrap for instance) to a div and its children without affecting the rest of the page.
For example, I need to migrate a footer written with Bootstrap over to an existing page. That page does not use bootstrap. If I link Bootstraps css at the top of the page, the css is applied to the whole page which ruins existing css. How can I just apply the bootstrap styles to the footer section without having to rewrite most of the page's css?
Any suggestions?
I ended up using LESS to compile a new css of bootstrap with a prefix of .bootstrap as seen below. It works, but i wonder if there is a more traditional way of handling this problem.
file: bootstrap-only.less
.bootstrap {
#import 'bootstrap.css'
}
file: bootstrap-only.css
.bootstrap .container {
width: 100%;
}
file: page.html
<style>
.container { width: 20px; }
</style>
<link rel="stylesheet" type="text/css" href="bootstrap-only.css">
<div class="not-bootstrap">
<div class="container">I am 20px</div>
</div>
<div class="bootstrap">
<div class="container">I am 100%</div>
</div>
You can try usig scooped css.Please do refer the following sample code.
<div>
<style scoped>
#import "filename.css";
</style>
//your div with its children will come here
</div>
Your inline styles should not be affected by adding Bootstrap as inline styles take precedence over styles from external resources. The only elements that should be affected are the ones in the page that share class names with bootstrap classes.
You can try referencing the Bootstrap css before your own css and your stylesheet will take precedence over the Bootstrap css. Unfortunately this may add styles additional styles to some of your classes which that you didn't explicitly reference in your stylesheet and may still change the look of your page.
For those classes that exist in both bootstrap and your stylesheet it's probably best to just change the names of those classes in your stylesheet and page. A quick way to do this is to use "replace" search for the class name and replace it with the new class name most IDEs have a way to "replace all" so it's often just a bit of typing and a few clicks to change a bunch of styles.
You can try using the Angular 2+, where you can simply create an component and us it anywhere irrespective of the page css. Basically it will create a shadow DOM and will not be accessible outside that component.
I'm using the Polymer Starter Kit, and I wanted to move the scaffold into it's own element <main-scaffold>. There are styles in app-theme.html that applied to it before I moved it into from index.html into it's own element, but now none of the styles apply. This is the case for any set of elements I've put into my own custom elements. The custom styles applied to <paper-material> from app-theme.html are not applied inside my <home-page> element. I want certain elements to have themes applied to them globally. The only style inside app-theme.html that apply anywhere else are the CSS Custom Properties such as --dark-primary-color.
Is there any way I can create themes that apply to the entire project? I've tried specifically importing app-theme.html into my elements, and it doesn't make a difference. Thanks in advance.
The themes from polymerthemes.com should apply across your entire project.
Just download one of the pre-made themes (or create your own using the Polymer Theme Builder) and link to it like this in your <head>:
<style is="custom-style">
#import url("path/to/theme.css");
</style>
Alternatively, have a look to see how styles are applied on that site.
Disclaimer: I'm one of the creators of polymerthemes.com.
I had the same problem and the following worked for me. Inside your dom-module add:
<link rel="import" type="css" href="../styles/app-theme.css">
For example:
<dom-module id="my-element">
<link rel="import" type="css" href="../styles/app-theme.css">
<template>
<paper-button raised class="primary">Click Me!</paper-button>
</template>
</dom-module>
This seems to only be needed for certain paper elements though. The paper-checkbox works without it. Not an ideal solution though, to be sure.
Found out that putting following in my custom element was causing the vulcanize task in gulpfile.js to crash (leaving the remaining tasks not run).
<link rel="import" href="/styles/app-theme.html">
Using relative path solved this problem
<link rel="import" href="../../../../styles/app-theme.html">
Worked somehow, but I think this is not the right thing to do. app-theme.html contains many css code that my custom element doesn't need.
Using mixins ( #apply(--mixin-name); ) looks like a good way, but hadn't tried it out yet. I think modification to app-theme.html would be necessary anyways.
I wish Polymer Starter Kit introduces a best practice for applying default margins/paddings/etc for paper-material/etc.
Edit Jul 2
Following didn't get applied.
app-theme.html
:root {
…
--app-paper-material-theme: {
border-radius: 2px;
height: 100%;
padding: 16px 0 16px 0;
width: calc(98.66% - 16px);
margin: 16px auto;
background: white;
};
}
my-customelement-using-papermaterial.html
<style>
paper-material {
#apply(--app-paper-material-theme);
}
</style>
My researching was messed up and posted wrong results in this few hours, so I decided to delete the portions. Sorry for those who saw them and took some kind of action.
I am trying to add custom styling to my web app. Here is the link to my code:
https://github.com/SammyAbukmeil/rps-challenge
In layout.erb I have the following:
<head>
...
<link rel="stylesheet" href="http://maxcdn.bootstrapcdn.com/bootstrap/3.3.4/css/bootstrap.min.css">
<link rel="stylesheet" type="text/css" href="css/custom.css">
...
</head>
Which should be loading my custom.css file.
In views/index.erb I have an ID of test:
<img class="img-responsive center-block" style="margin-top: 40px" id="test"src="http://i.imgur.com/hSuFTzO.png">
and in css/custom.css I am calling that ID:
#test {
margin-top: 50px;
}
But for some reason it doesn't apply my custom styling, although bootstrap (which is being linked in layout.erb and is adding styling to the .erb files throughout the project) is working.
I've tried looking through similar questions on stack overflow without success, also tried google for how to add custom styling to a bootstrap project - everything I'm doing seems to be correct.
Any advice is greatly appreciated. Thanks!
EDIT: So i checked the console and found this:
...
Status Code: 404 Not Found
Request URL: http://localhost:4567/css/custom.css
...
So I guess I'm not linking it right.
Bootstrap selectors are very specific, for example body > div > img.img-responsive. You need to be more specific in order to override the selector. You can test this by using temporally the !important declaration:
#test {
margin-top: 50px !important;
}
If it overrides, you have a working setup that just needs more specific selectors. After that you should remove the !important declaration and add details to the selector:
body > div > img#test {
margin-top: 50px !important;
}
In Sinatra any static files (such as CSS files) should be in the folder pointed to by the public_folder setting. Usually this is named public. In your server.rb you set it to be public but relative to the projects root.
You need to create a public folder at the top level of your project (next to app, view etc.), move your css directory to it and then change the setting in server.rb so that :public_folder points to it, similar to what you have done with the :views setting:
set :public_folder, proc { File.join(root, "..", "public") }
First You need to understand the hierarchy of CSS
You Can use Firebug (Firefox) to identify that your styling is apply or not also what class is overrating your custom css.
Note: Also avoid adding ID for CSS Styling
You need to override the bootstrap selector.
It is not good practice to use this in your finished website, however you can use !important to over ride other style rules.
Example of Use
.element-class{
width:50%;
}
.element-class{
width:100% !important;
}
The element would have the width of 100% here.
Read more about when to use this on the css-tricks article
I have been given an external stylesheet (.css file) that may not altered in any way whatsoever. However I need to apply this stylesheet to a single div and therefore the contents of the div in my already existing webpage. I am currently reading the contents of the stylesheet as text into a blank style tag (using .innerHTML) within the div I need to affect but this still affects the entire web page rather than just the single div. Could someone please help with this?
The IFRAME solution works like this:
In your main HTML file, you'll have your DIV:
<div id="myspecialdiv">
<iframe width="100%" height="100%" frameborder="0" src="divcontent.html"></iframe>
</div>
Style that as you need it. The divcontent.html file should be a complete HTML file, including the content of the DIV tag, and a LINK using your external stylesheet:
<html>
<head>
<link rel="stylesheet" href="path/to/external/stylesheet.css" />
</head>
<body>
<!-- The contents of your DIV -->
</body>
</html>
If you can work with HTML5, you could try using scoped styles. You could include the CSS inside the div, having it affect only its parent:
<div>
<style scoped>
// Styles here
</style>
</div>
This will helps you a lot:
http://css-tricks.com/saving-the-day-with-scoped-css/
Applies only style to a certain delimited escope. Good luck!
IMHO better than the iframe solution..
related: Limit scope of external css to only a specific element?
If you have access to server-side scripting (eg: PHP), you could create a script that loads the external stylesheet, and appends a class name in front of every entry. Then apply this class to your DIV tag. So, if the CSS includes:
p { font-size: 12px; }
You'd modify that to:
.mydiv p { font-size: 12px; }
And format your DIV as
<div class="mydiv">...</div>
You would then load the script as a stylesheet, rather than the external stylesheet directly.
<link rel="stylesheet" href="path/to/internal/script.php" />
I suggest you can leave the external style sheet as it is and create an internal style sheet with the classes that you want from the external stylesheet to affect your single div and just rename it and apply those renamed classes to the div. The renaming is because the attributes of those classes may affect elements already existing on the page from external stylesheets.
<style>
.xxx {...} /* The renamed class from this internal css that should apply to your div */
</style>
Hope this helps.
I assume that the style specifications inside the external file are not contained in classes or IDs, but are they blanket adjustments to tags like <p> (and thus it cannot be included in your page headers). Include your div in a <style scoped> tag and import the .css file there. See: http://css-tricks.com/saving-the-day-with-scoped-css/
You could assign a CSS prefix to target the section of your document you want to style.
scoped is a good idea, but has browser compatible issue.
I solve this problem by adding pre-class before all selector in css file:
https://github.com/ericf/grunt-css-selectors