So I have this navbar:
<nav class="navbar navbar-default" style="background: black; margin-bottom: 0;">
And it's working fine. However when I'm trying to change styles in external CSS file instead of inline:
.navbar-default {
background: black;
margin-bottom: 0;
}
They are not working at all. CSS file is working fine since I checked and bg pictures are changing. I have problem only with navbar and can't figure it out. According to this: Change navbar color in Twitter Bootstrap 3 I'm doing everything fine. It's first time I'm having this issue. Working with bootstrap if anyone is wondering :)
Any help guys? I dont want to use inline css.
You need to override the Bootstrap classes, Use !important to get it work
.navbar-default {
background: black !important;
margin-bottom: 0 !important;
}
Note: If you use !important all other rules used in your CSS cannot override this declaration.
Chances are your styles are being overridden as these styles are being set elsewhere. The C in css stands for cascading. See the cascading order section of this page
The easy option is to simply include your stylesheet after the bootstrap one.
Of course you can override this precedence by adding !important to the end of your style rules but this breaks some of the functionality of CSS and can become difficult to maintain.
I think default bootstrap navbar style is applying so try !important in front of property value.
.navbar-default {
background: black !important;
margin-bottom: 0 !important;
}
I have faced same problem and after searching alot i have found that as navbar-default is default class of bootstrap and its not overloaded by external css file.You can use !important property of css that will help you to load external css file when there default class are overloaded.
.navbar-default {
background: black !important;
margin-bottom: 0 !important;
}
I can not override the default css. Any help?
HTML:
<link href="css/bootstrap.min.css" rel="stylesheet">
<!--Custom CSS-->
<link fref="css/custom.css" rel="stylesheet">
CSS:
.navbar ,.navbar-defualt {
background-color: red;
border-color: blue;
}
I have tried targeting .navar-custom and .navbar-inverse
EDIT: Your CSS is linked incorrectly. Change the <link fref=""> to <link href="">. So just a little typo here which explains it all.
Just to make sure you've linked your custom.css to your HTML file correctly, try to change your navigation background color like following:
.navbar-default {
background-color: #00ffff !important;
}
If that does absolutely nothing at all, your CSS file is not linked to your HTML file and you should check what's wrong with the file path.
If it works, you should go for the .navbar-default only, since you don't necessarily need to override .navbar style properties when you're already doing it for the .navbar-default.
It's now safe to say it works and remove the !important markup, since it should work perfectly well without it.
If you need to override navbar-default class, then target same class. This is working.
Let me explain you this, in your code you are using navbar, navbar-default but those two classes are relevant to same class definition, so you do not need to use ','(comma). Instead of that use '.navbar.navbar-default'. This will give you the working CSS.
.navbar-default {
background-color: red;
border-color: blue;
}
I have an HTML page where the links are specified blue by default for most of the body. I speficy it like this (using SASS):
a:link {
color: $link_new; // This is a blue colour
}
I have a navigation menu that has a blue background, so just in the header, I want to change the links to white. Up until recently, my header was contained in a DIV tag that had the ID "header". My code is like this:
#header a:link {
color: #ffffff;
text-decoration: none;
}
Recently, I thought I would change the div to be a <header> tag. Just change <div id="header"></div> to <header></header>. So, in my CSS, I have:
header a:link {
color: #ffffff;
text-decoration: none;
}
But, when I do this, the link text stops being white! I change nothing else, so I don't see how this can be. I reverted the <header> back to <div id="header">, and my links go back to being white, as they should be.
I don't get it. Does a <header> tag inherit differently or something? Why would the header tag pull the colour from the a:link declaration, and not the more local header a:link declaration?
Here is what the link element looks like under the ` when using the Firefox developer inspector:
And here is what it looks like with a <header> element:
As you are not using HTML5 (by seeing your Doctype) so you cannot used header element directly . As per HTML5 specification header is treated as HTML element. So simply change your Doctype and use this one <!DOCTYPE html> then you can use <header> element.
You need to add :link after a
Like this
header a:link {
color: #fff
}
You need to change a:link to a.
header a {
color: #ffffff;
text-decoration: none;
}
Please check the Jsfiddle demo
in first code you written code by using selector '#header a' and after you use <header> tag than you give style by using 'header a'
in this case ID's priority is high than class or element selector
https://developer.mozilla.org/en-US/docs/Web/CSS/Specificity
http://css-tricks.com/specifics-on-css-specificity/
<head>
<link href="index.css" rel="stylesheet">
<style>
#amor_di_mundo{
color:#ffffff;
}
</style>
</head>
<body>
<div id='divL'>
<div id='amor_di_mundo'>Amor di Mundo</div>
<div id='quem_boe'>Quem Boe</div>
</div>
index.css
#divL div{
color:#800000;
}
In index.css a div (#amor_di_mundo) is styled with color:800000
In a specific file I need to overwrite it with color:#ffffff but it's not overwritten !
The problem is with css specificity: a inline style has more power than an external file. Use the same selector, and move the inline styles in a default stylesheet, then add your new styles in a desired file and load first the default stylesheet, then the second stylesheet that you want to overwrite with
The css would need to follow the same rule. So it would need to be
#divL div {
color: #ffffff;
}
You could mark it as important to get around this:
#amor_di_mundo {
color: #ffffff !important
}
As #divL div is more specific than #amor_di_mundo.
You need to apply either color: #ffffff !important to or write css like this:
#divL #amor_di_mundo{
color:#ffffff;
}
I think you need to put the syle attribute not in header but where the element is in the body itself. The syntax to follow is:
Style="color:#ffffff;"
Add it to the opening tag of the element.
I need to modify bootstrap.css to fit my website. I feel it's better to create a separate custom.css file instead of modifying bootstrap.css directly, one reason being that should bootstrap.css get an update, I'll suffer trying to re-include all my modifications. I'll sacrifice some load time for these styles, but it's negligible for the few styles I'm overriding.
Hw do I override bootstrap.css so that I remove the style of an anchor/class? For example, if I want to remove all the styling rules for legend:
legend {
display: block;
width: 100%;
padding: 0;
margin-bottom: 20px;
font-size: 21px;
line-height: inherit;
color: #333333;
border: 0;
border-bottom: 1px solid #e5e5e5;
}
I can just delete all that in bootstrap.css, but if my understanding about best practices on overriding CSS is correct, what should I do instead?
To be clear, I want to remove all those styles of legend and use parent's CSS values. So combining Pranav's answer, will I be doing the following?
legend {
display: inherit !important;
width: inherit !important;
padding: inherit !important;
margin-bottom: inherit !important;
font-size: inherit !important;
line-height: inherit !important;
color: inherit !important;
border: inherit !important;
border-bottom: inherit !important;
}
(I was hoping there's a way to do something like the following:)
legend {
clear: all;
}
Using !important is not a good option, as you will most likely want to override your own styles in the future. That leaves us with CSS priorities.
Basically, every selector has its own numerical 'weight':
100 points for IDs
10 points for classes and pseudo-classes
1 point for tag selectors and pseudo-elements
Note: If the element has inline styling that automatically wins (1000 points)
Among two selector styles browser will always choose the one with more weight. Order of your stylesheets only matters when priorities are even - that's why it is not easy to override Bootstrap.
Your option is to inspect Bootstrap sources, find out how exactly some specific style is defined, and copy that selector so your element has equal priority. But we kinda loose all Bootstrap sweetness in the process.
The easiest way to overcome this is to assign additional arbitrary ID to one of the root elements on your page, like this: <body id="bootstrap-overrides">
This way, you can just prefix any CSS selector with your ID, instantly adding 100 points of weight to the element, and overriding Bootstrap definitions:
/* Example selector defined in Bootstrap */
.jumbotron h1 { /* 10+1=11 priority scores */
line-height: 1;
color: inherit;
}
/* Your initial take at styling */
h1 { /* 1 priority score, not enough to override Bootstrap jumbotron definition */
line-height: 1;
color: inherit;
}
/* New way of prioritization */
#bootstrap-overrides h1 { /* 100+1=101 priority score, yay! */
line-height: 1;
color: inherit;
}
In the head section of your html place your custom.css below bootstrap.css.
<link href="bootstrap.min.css" rel="stylesheet">
<link href="custom.css" rel="stylesheet">
Then in custom.css you have to use the exact same selector for the element you want to override. In the case of legend it just stays legend in your custom.css because bootstrap hasn't got any selectors more specific.
legend {
display: inline;
width: auto;
padding: 0;
margin: 0;
font-size: medium;
line-height: normal;
color: #000000;
border: 0;
border-bottom: none;
}
But in case of h1 for example you have to take care of the more specific selectors like .jumbotron h1 because
h1 {
line-height: 2;
color: #f00;
}
will not override
.jumbotron h1,
.jumbotron .h1 {
line-height: 1;
color: inherit;
}
Here is a helpfull explantion of specificity of css selectors which you need to understand to know exactly which style rules will apply to an element.
http://css-tricks.com/specifics-on-css-specificity/
Everything else is just a matter of copy/paste and edit styles.
It should not effect the load time much since you are overriding parts of the base stylesheet.
Here are some best practices I personally follow:
Always load custom CSS after the base CSS file (not responsive).
Avoid using !important if possible. That can override some important styles from the base CSS files.
Always load bootstrap-responsive.css after custom.css if you don't want to lose media queries. - MUST FOLLOW
Prefer modifying required properties (not all).
Link your custom.css file as the last entry below the bootstrap.css. Custom.css style definitions will override bootstrap.css
Html
<link href="css/bootstrap.min.css" rel="stylesheet">
<link href="css/custom.css" rel="stylesheet">
Copy all style definitions of legend in custom.css and make changes in it (like margin-bottom:5px; -- This will overrider margin-bottom:20px; )
Update 2021 - Bootstrap 4 and Bootstrap 5
There are 3 rules to follow when overriding Bootstrap CSS..
import/include bootstrap.css before your CSS rules (overrides)
use more CSS Specificity (or equal) than the Bootstrap CSS selectors
if any rule is overridden, use !important attribute to force your rules. If you follow rules 1 & 2 this shouldn't be necessary except for when using Bootstrap utility classes which often contain !important as explained here
Yes, overrides should be put in a separate styles.css (or custom.css) file so that the bootstrap.css remains unmodified. This makes it easier to upgrade the Bootstrap version without impacting the overrides. The reference to the styles.css follows after the bootstrap.css for the overrides to work.
<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css">
<link rel="stylesheet" type="text/css" href="css/styles.css">
Just add whatever changes are needed in the custom CSS. For example:
legend {
display: block;
width: inherit;
padding: 0;
margin-bottom: 0;
font-size: inherit;
line-height: inherit;
color: inherit;
white-space: initial;
}
Note: It's not a good practice to use !important in the override CSS, unless
you're overriding one of the Bootstrap Utility
classes. CSS
specificity
always works for one CSS class to override another. Just make sure you use a CSS selector that is that same as, or more specific than the bootstrap.css
For example, consider the Bootstrap 4 dark Navbar link color. Here's the bootstrap.css...
.navbar-dark .navbar-nav .nav-link {
color: rgba(255,255,255,.5);
}
So, to override the Navbar link color, you can use the same selector, or a more specific selector such as:
#mynavbar .navbar-nav .nav-link {
color: #ffcc00;
}
For example: https://codeply.com/p/FyQapHImHg
When the CSS selectors are the same, the last one takes precedence, which it why the styles.css should follow the bootstrap.css.
To reset the styles defined for legend in bootstrap, you can do following in your css file:
legend {
all: unset;
}
Ref: https://css-tricks.com/almanac/properties/a/all/
The all property in CSS resets all of the selected element's
properties, except the direction and unicode-bidi properties that
control text direction.
Possible values are: initial, inherit & unset.
Side note: clear property is used in relation with float (https://css-tricks.com/almanac/properties/c/clear/)
See https://bootstrap.themes.guide/how-to-customize-bootstrap.html
For simple CSS Overrides, you can add a custom.css below the bootstrap.css
<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css">
<link rel="stylesheet" type="text/css" href="css/custom.css">
For more extensive changes, SASS is the recommended method.
create your own custom.scss
import Bootstrap after the changes in custom.scss
For example, let’s change the body background-color to light-gray #eeeeee, and change the blue primary contextual color to Bootstrap's $purple variable...
/* custom.scss */
/* import the necessary Bootstrap files */
#import "bootstrap/functions";
#import "bootstrap/variables";
/* -------begin customization-------- */
/* simply assign the value */
$body-bg: #eeeeee;
/* or, use an existing variable */
$theme-colors: (
primary: $purple
);
/* -------end customization-------- */
/* finally, import Bootstrap to set the changes! */
#import "bootstrap";
A bit late but what I did is I added a class to the root div then extends every bootstrap elements in my custom stylesheet:
.overrides .list-group-item {
border-radius: 0px;
}
.overrides .some-elements-from-bootstrap {
/* styles here */
}
<div class="container-fluid overrides">
<div class="row">
<div class="col-sm-4" style="background-color: red">
<ul class="list-group">
<li class="list-group-item">Hey</li>
<li class="list-group-item">I was doing</li>
<li class="list-group-item">Just fine</li>
<li class="list-group-item">Until I met you</li>
<li class="list-group-item">I drink too much</li>
<li class="list-group-item">And that's an issue</li>
<li class="list-group-item">But I'm okay</li>
</ul>
</div>
<div class="col-sm-8" style="background-color: blue">
right
</div>
</div>
</div>
If you are planning to make any rather big changes, it might be a good idea to make them directly in bootstrap itself and rebuild it. Then, you could reduce the amount of data loaded.
Please refer to Bootstrap on GitHub for the build guide.
I found out that (bootstrap 4) putting your own CSS behind bootstrap.css and .js is the best solution.
Find the item you want to change (inspect element) and use the exact same declaration then it will override.
It took me some little time to figure this out.
for ruby on rails users--
in your application css file, make sure the bootstrap file is mentioned first then the custom css stylesheet. This way the latter CSS code that you wrote overwrites the former. Use !important if needed as well
*= require 'bootstrap.min'
*= require_self
*= require 'name_of_your_stylesheet'
Inspect the target button on the console.
Go to elements tab then hover over the code and be sure to find the default id
or class used by the bootstrap.
Use jQuery/javascript to overwrite the style/text by calling the function.
See this example:
$(document).ready(function(){
$(".dropdown-toggle").css({
"color": "#212529",
"background-color": "#ffc107",
"border-color": "#ffc107"
});
$(".multiselect-selected-text").text('Select Tags');
});
Give ID to legend and apply css. Like add id hello to legend() the css is as follw:
#legend legend {
display: block;
width: 100%;
padding: 0;
margin-bottom: 20px;
font-size: 21px;
line-height: inherit;
color: #333333;
border: 0;
border-bottom: 1px solid #e5e5e5;
}
Use jquery css instead of css . . . jquery have priority than bootstrap css...
e.g
$(document).ready(function(){
$(".mnu").css({"color" : "#CCFF00" , "font-size": "16px" , "text-decoration" : "overline"});
);
instead of
.mnu
{
font-family:myfnt;
font-size:20px;
color:#006699;
}