I have a factory I call that returns some HTML. I would like to display this HTML in a section of my app, but I don't want its CSS to affect the site's, nor do I want the site's to affect it. It needs to be an iframe more or less but I feel like there's a better way to do it in Angular.
I essentially have something like this (Angular 1.2)
var promise = myFactory.getHtml();
getTemplate.then(function(data) {
$scope.mine.html = $sce.trustAsHtml(data.data);
});
I can display this HTML no problem, but it looks terrible inside of my app. How can I make it independent?
Select your element (say using an id selector) and use the following rule to reset all its properites
all: initial;
see https://developer.mozilla.org/en/docs/Web/CSS/all
and then apply the specific properties for your div. For example
CSS
div {
color: red;
background-color: blue;
}
#a {
all: initial;
color: blue;
}
HTML
<div id="a">asdf</div>
The fact that it is an angular template need not come into the picture.
Related
I'm building JavaScript widgets that are supposed to be added onto other people's websites.
I style my widgets by dynamically adding a CSS to the pages they're on.
For example,
My CSS code below applies to a DIV inside my widget:
.myWidget { background-color: red; }
But a CSS file outside my own on a remote page might have:
div { border: 5px solid green; }
The CSS above would also apply to my widgets. How can I disable all other CSS outside my own?
Thanks
You could be Using shadow DOM
Shadow DOM MDN Web Docs
An important aspect of web components is encapsulation — being able to keep the markup structure, style, and behavior hidden and separate from other code on the page so that different parts do not clash, and the code can be kept nice and clean. The Shadow DOM API is a key part of this, providing a way to attach a hidden separated DOM to an element.
You can use the all shorthand property and the unset keyword to set each property's value to its initial value.
.myWidget {
all:unset;
background-color: red;
}
div {
background-color:yellow;
}
<div class="myWidget">Hello World!</div>
Im currently working on a Angular2 application with webpack and Im trying to set differents css themes according to the user.
For example : When the user connect, If it's a boy, I want to have my backgrounds blue, and if it's a girl I want the backgrounds to be pink.
Simply changing the css value with setAttribute or style.property wont work because the DOM is destroyed when changing tab in the application, it needs to be kinda permanent.
I've tried using different css stylesheets (1 for each theme) and linking them to my html with javascript when the user connect. Problem is, webpack is always adding automatically my css to my html when building the app.
Thanks for the help.
In your css, make a rule like :
.is-boy{
background: blue;
}
.is-girl{
background: pink;
}
and declare in you angular app a scope var like $scope.userSex = 'boy';
and on your body use ngClass like this
<body [ngClass]="{'is-boy': userSex === 'boy', 'is-girl': userSex === 'girl'}" ...
:host-context selector
You could use the :host-context selector to apply styles to your component based on the parent component.
styles:[`
:host-context(.parent1) div{
border: 1px solid blue;
}
:host-context(.parent2) div{
border: 1px solid blue;
}
`]
This allows you to conditionally apply styles based on a the selector that wraps the component.
plunker
edit:
So in your case - your parent would have a div with class .boy and a div with class .girl
You could load these containing divs with some flag controlled by ngIf
If you want to be permanent store class value in localStorage. To set the theme use ngClass with variable set to theme you need.
I am doing a code that do some js injection of code in page, with JQuery. But in my input that i get in some pages modify it, I am putting all important attributes and define them as !important, but it's impossible to put all the attributes in all the tags.
Someone know how to disable all other css inside a div?
Solution I think:
I found a solution but i don't want to use it. Its eliminate al css from the page, while i am injecting the code after using that code I eliminate my css and code and apply the original code from the webpage
Thanks
If you're using that many !importants you're doing it wrong.
The solution to this problem is to properly organize your css. Important stuff last, because it overrides what was previously styled. Also use your selectors wisely. Example:
<a class="link">Link</a>
.
a:link { color: red; }
.
.
.
.link { color: green !important; } // Nop
a.link { color: green; } // Yup
If you override everything it will work with normal CSS rules on every page. Not what you were hoping for, but it is a solution.
css:
#myInsertDiv {
color: blue;
padding: 0;
margin: 0;
background: white;
border: 0px;
/* etc you have to restyle EVERY possible value */
}
html:
<div id="myInsertDiv"></div>
The main issue is you have to style every attribute, and reset everything else to a default value.
Or you can insert all the style information into the style attribute on the div, but that is probably doing it wrong too.
If I got you right you can use jQuery for modifying CSS properties on any elements of the page (huh), using something like this $('.Myclass').css('color','#ff0000')
And more about selectors in jQuery - http://api.jquery.com/category/selectors/
This question already has answers here:
How to reset/remove CSS styles for a specific element or selector only
(17 answers)
Closed last month.
I know this question was asked before, but before marking it as a duplicate, I want to tell you that my situation is a little different from what I found on the internet.
I'm building and embedded script that people can put it on their sites. This script creates a div with a certain width/height and some information in it.
My problem is that some websites declare styles for div that are inherited by my div as well.
for example:
div{
background-color:red;
}
so if I don't set any background color to my div, it will show red even if I don't want that.
The only solutions I come along is to overwrite as many css proprieties, this way my div will show exactly as I want.
The problem with this solution is that there are too many css proprieties to overwrite and I want my script to be as light as it can be.
So my question is if you know another solution to my problem.
It can be in css/javascript /jQuery.
Thanks
"Resetting" styles for a specific element isn't possible, you'll have to overwrite all styles you don't want/need. If you do this with CSS directly or using JQuery to apply the styles (depends on what's easier for you, but I wouldn't recommend using JavaScript/JQuery for this, as it's completely unnecessary).
If your div is some kind of "widget" that can be included into other sites, you could try to wrap it into an iframe. This will "reset" the styles, because its content is another document, but maybe this affects how your widget works (or maybe breaks it completely) so this might not be possible in your case.
Only set the relevant / important CSS properties.
Example (only change the attributes which may cause your div to look completely different):
background: #FFF;
border: none;
color: #000;
display: block;
font: initial;
height: auto;
letter-spacing: normal;
line-height: normal;
margin: 0;
padding: 0;
text-transform: none;
visibility: visible;
width: auto;
word-spacing: normal;
z-index: auto;
Choose a very specific selector, such as div#donttouchme, <div id="donttouchme"></div>. Additionally, you can add `!important before every semicolon in the declaration. Your customers are deliberately trying to mess up your lay-out when this option fails.
You could try overwriting the CSS and use auto
I don't think this will work with color specifically, but I ran into an issue where i had a parent property such as
.parent {
left: 0px;
}
and then I was able to just define my child with something like
.child {
left: auto;
}
and it effectively "reset" the property.
Technically what you are looking for is the unset value in combination with the shorthand property all:
The unset CSS keyword resets a property to its inherited value if it inherits from its parent, and to its initial value if not. In other words, it behaves like the inherit keyword in the first case, and like the initial keyword in the second case. It can be applied to any CSS property, including the CSS shorthand all.
.customClass {
/* specific attribute */
color: unset;
}
.otherClass{
/* unset all attributes */
all: unset;
/* then set own attributes */
color: red;
}
You can use the initial value as well, this will default to the initial browser value.
.otherClass{
/* unset all attributes */
all: initial;
/* then set own attributes */
color: red;
}
As an alternative:
If possible it is probably good practice to encapsulate the class or id in a kind of namespace:
.namespace .customClass{
color: red;
}
<div class="namespace">
<div class="customClass"></div>
</div>
because of the specificity of the selector this will only influence your own classes
It is easier to accomplish this in "preprocessor scripting languages" like SASS with nesting capabilities:
.namespace{
.customClass{
color: red
}
}
Try this: Create a plain div without any style or content outside of the red div. Now you can use a loop over all styles of the plain div and assign then to your inner div to reset all styles.
Of course this doesn't work if someone assigns styles to all divs (i.e. without using a class. CSS would be div { ... }).
The usual solution for problems like this is to give your div a distinct class. That way, web designers of the sites can adjust the styling of your div to fit into the rest of the design.
As long as they are attributes like classes and ids you can remove them by javascript/jQuery class modifiers.
document.getElementById("MyElement").className = "";
There is no way to remove specific tag CSS other than overriding them (or using another element).
you may use this below option.
<style>
div:not(.no_common_style){
background-color:red;
}
</style>
now , if their any place where you do not want to apply default style you can use 'no_common_style' class as class.
ex:
<div class="no_common_style">
It will not display in red
</div>
From what I understand you want to use a div that inherits from no class but yours. As mentioned in the previous reply you cannot completely reset a div inheritance. However, what worked for me with that issue was to use another element - one that is not frequent and certainly not used in the current html page. A good example, is to use instead of then customize it to look just like your ideal would.
area { background-color : red; }
One simple approach would be to use the !important modifier in css, but this can be overridden in the same way from users.
Maybe a solution can be achieved with jquery by traversing the entire DOM to find your (re)defined classes and removing / forcing css styles.
i'm writing a sophisticated visual effect, that changes "box-shadow" property.
Let's for short, just name the value for shadow (1pt 1pt 3pt rgba(...)), like "shadow".
I have a stylesheet, and HTML element in question.
Element has, say, "shadow1" value defined for normal state, and "shadow2" for hovered state:
.elem {
box-shadow: #333 1pt 1pt 3pt; /* shadow1 */
}
.elem:hover {
box-shadow: #666 3pt 3pt 5pt; /* shadow2 */
}
My script adds it's own shadow to existing one. So:
box-shadow: shadow1, shadow2
This is simple to implement. I just need to do following, using jQuery:
var defaultShadow = elem.css("box-shadow");
elem.css("box-shadow", defaultShadow + ", " + anotherShadow);
So, the algorithm is following:
var defaultShadow = elem.css("box-shadow");
Do something in a setInterval. Add another shadow to default one
The problem arises, when element gets hovered, having effect-script running. In this case, effect is already working with "defaultShadow", that was obtained in step 1.
It's more harder, because shadows, stated in script appears in the "style" attribute, and all rules, declared with external CSS are getting overridden.
Is there a way to get CSS styles, declared in a .css file, for element in question, using JavaScript. I need also styles for states of the element, like ":hover", ":active" etc.
Is there a way to get CSS styles,
declared in a .css file, for element
in question, using JavaScript. I need
also styles for states of the element,
like "hover", "active" etc.
You should be able to modify the cssRules object with javascript to create your own rules instead of relying on inline styles.
See this blog post for a bit more information.
Example of IE:
document.styleSheets[0].addRule("p .myclass", "font-size: 120%");
Example for Firefox:
document.styleSheets[0].insertRule("p{font-size: 20px;}", 0);
Reference doc these were found.
document.getElementById("id").className = 'arrow_box