I need to remove the automatic element.style position:relativeproperty that is being applied to my Bootstrap generated div. If I make the element style to static it works fine.
It's difficult to do this by JavaScript, as this is a dynamically generated element - I guess from the malihu jquery scroller.
Why don't you simply add !important to your css:
<style>
div#mCSB_1_container {
position: unset !important;
top: unset !important;
left: unset !important;
}
</style>
Without knowing how it was configured in the first place I would resort to JavaScript:
<script>
// Listen to the DOM load event before modifying the dynamic div
// As per #Rene van der Lende's contribution
document.addEventListener("DOMContentLoaded",init_func)
function init_func () {
var troubledDiv = document.getElementById('mCSB_1_container')
troubledDiv.style.display = "unset"
}
</script>
Unless you can change the config before bootstrap gens your code, this would be the way to override inline style.
Related
I've created a web component using Stencil that uses the shadow DOM and needs to ignore any CSS that has been added to the page (it has its own stylesheet). To that end, I've included the usual fix to the component stylesheet:
:host {
all: initial;
}
This works to reset any base styles set on the page using the <style> tag or an external stylesheet. However, if an inherited style like font-size is defined on the :root or html elements, its value is used when computing a relative value (e.g. 1rem) instead of using the browser's base size or a font size specified in my component's CSS.
In this example, my dev tools are showing that a font-size: 160px value applied to the :root is being used to calculate the final font size for an element that has been given font-size: 0.875rem, even though I've used the CSS reset above and tried to apply my own base of 16px.
I've done a fair bit of research regarding styles applied to the :root element, but have not found an answer. Is there a way to override styles used to compute relative values if they are set on the :root?
Here is a playground: https://jsfiddle.net/WebComponents/L5kbf8qm/
<style>
:root {
font-size: 15px;
}
</style>
<my-element all="initial"></my-element>
<my-element all="inherit">Note we get the UA 8px margin back</my-element>
<script>
customElements.define("my-element", class extends HTMLElement {
connectedCallback() {
let all = this.getAttribute("all");
this.attachShadow({mode:"open"})
.innerHTML = `<style>`+
` :host{all:${all}}` +
` div{font-size:2rem;background:pink}`+
`</style>` +
`<div>Component all:${all}</div>`+
`<span id=result ></span><slot></slot>`;
const add = (name) => {
let size = window.getComputedStyle(this.shadowRoot.querySelector(name))["font-size"];
this.shadowRoot.querySelector("#result").append(`${name} font-size is: `, size, document.createElement("br"));
}
add("div");
add("span");
}
})
</script>
How can I add separate CSS for one page in Angular?
This is the CSS I need, as per How to remove the URL from the printing page?:
#media print{
#page{
margin:0;
}
body{
margin:30px;
}
}
But putting CSS into the component with ::ng-deep or ViewEncapsulation.None won't help here, because when navigating away from a page, the CSS of the page isn't deleted.
I've added a Stackblitz, which explains the problem clearly.
I've come up with a potential solution, but it doesn't work:
encapsulation: ViewEncapsulation.None
...
constructor(private renderer: Renderer2) {
this.renderer.addClass(document.body, 'special-print');
}
ngOnDestroy() {
this.renderer.removeClass(document.body, 'special-print');
}
....
....
....
#media print{
#page{
margin:0;
}
body.special-print{
margin:30px;
}
}
Why it doesn't work:
While it would help with <body> CSS, it won't help with #page CSS. Perhaps the question would be better summarized as "How to add global CSS, but remove it when we leave the page?".
Solved!
We print the <style> block directly into the component's HTML, and therefore when the component gets removed, our <style> block gets removed too. (Normally this wouldn't work, but thanks to DomSanitizer.bypassSecurityTrustHtml, Angular won't break our code when running optimizations.)
Here's a StackBlitz.
First, create a new component to handle the work:
component.ts: (This is all we need. We don't need an HTML or style.css file.)
//Inside your local component, place this HTML
//<app-local-css [style]="'body{background:green !important;}'"></app-local-css>
// OR
//<app-local-css [scriptURL]="'/path/to/file.css'"></app-local-css>
#Component({
selector: "app-local-css",
template: '<span style="display:none" [innerHTML]="this.safeString"></span>'
})
export class LocalCSSComponent implements OnInit {
constructor(protected sanitizer: DomSanitizer) {}
#Input() scriptURL?: string;
#Input() style?: string;
safeString: SafeHtml;
ngOnInit() {
if (this.scriptURL) {
let string = '<link rel="stylesheet" type="text/css" href="' + this.scriptURL + '">';
this.safeString = this.sanitizer.bypassSecurityTrustHtml(string);
} else if (this.style) {
let string = '<style type="text/css">' + this.style + "</style>";
this.safeString = this.sanitizer.bypassSecurityTrustHtml(string);
}
}
}
And then use it like this:
mySample.component.html:
<app-local-css [style]="'body{background:green !important;}'"></app-local-css>
// OR
<app-local-css [scriptURL]="'/path/to/file.css'"></app-local-css>
Angular is doing client-side rendering, which is bad news, because you do not have separate pages. You have several possible solutions though:
1. Separate page
You can create another page with or without Angular, which includes the CSS you need and load that page. In the most simplistic approach to achieve this, the other page would have a different URL. If having a different URL is not to your liking, then you could hide your page's content and show the other page inside an iframe. It would admittedly be a hacky solution, but it is a solution.
2. Client-side CSS rendering
Instead of just loading the CSS, you could have a component which would control global CSS rules, matched by your view's name. You would have a template value rendered to a property, like:
#media print{
#page{
margin:0;
}
body{
margin:30px;
}
}
And when you visit the page where this needs to be activated, you would simply initialize a property with a style HTML element that was generated based on the template and added to head. Once you leave the given view, your component would detect that event and would remove() that element. If you choose this solution, then it would be wise to make sure that you are supporting this on more general terms, so that if some new views will have their custom global CSS, then they would be easy to integrate into your project in the future.
3. body classes
You could add/remove some custom-print or whatever class to/from body whenever the style is to be changed. This way you could add the CSS exactly once to your HTML and change the rules accordingly, like:
body.custom-print {
margin: 30px;
}
This would be a neat solution, but the problem in your case is that you have a #page rule as well and I'm not sure how you could make that dependant on body classes or some other HTML attributes. I would conduct quite a few experiments about this if I were you.
4. Iframe staging
You could avoid having that CSS in your main page, but would have a hidden iframe where you would have the CSS and would just copy the content into the CSS and once that's loaded, print that.
Don't change the whole body from apple. Instead, there are a few changes to make.
In the app component, hold a boolean for whether or not you are on apple, and use ngClass for class defined in scss.
Track which route you are on in appComponent, and set isApple accordingly
Add a div around all your html, for container to take full size
Add global html, body setting height to 100% so you see color everywhere
Remove body overriding in apple
so,
appComponent.ts:
isApple: Boolean;
constructor(router: Router) {
router.events.subscribe(v => {
if (v instanceof NavigationEnd) {
this.isApple = v.url === "/apple";
}
});
}
appComponent.html:
<div [ngClass]="{'red':isApple}" class="container">
<p>
There are two components: Apple and Banana. Switching between them will show
the problem.
</p>
<router-outlet></router-outlet>
</div>
appComponent.scss
.red {
background-color: red;
}
.container {
height: 100%;
}
apple.component.scss (remove body)
/*Sample "global" CSS, that affects something outside the current component.*/
::ng-deep {
#media print {
#page {
margin: 0;
}
}
}
styles.scss (global)
html, body {
height: 100%;
}
You can see this altogether at this Stackblitz link
You can add different css files in the component (for instance, app-task.component.ts):
#Component({
selector: 'app-task',
templateUrl: './app-task.component.html',
styleUrls: ['./app-task.component.scss', './styles2.scss', './styles3.scss']
})
In this example, the style files are in the same folder that the component, but this is not the best option: you have to put the files in assets, for example. Also, be careful with the thread of the styles, since the first one you put will be put before the second (obviously).
How do I achieve something like this:
*:hover{
background-color:lightblue;
}
I am trying to change background color of any element on the page when hovering on the element. Not sure why it doesnt work.
It works fine http://jsfiddle.net/mendesjuan/9pta8vbz/
The problem is that it's highlighting the entire body since the mouse is over the body, so you don't see highlighting on children any differently.
The following example should clarify it http://jsfiddle.net/mendesjuan/9pta8vbz/1/ It will highlight items inside the body
CSS
body *:hover{
background-color:lightblue;
}
HTML
<p>1 <span>inside</span></p><p>2</p><p>3</p>
It will highlight the paragraphs, but the span will behave the same way since the paragraph will also be highlighted
What you are doing cannot be done with CSS alone, you can use JS to add a CSS class to the element that the mouse is over http://jsfiddle.net/mendesjuan/9pta8vbz/2/
CSS
.highlight {
background-color:lightblue;
}
JavaScript
// This is a simplified version that doesn't take care of edge cases
// known bugs: should use addEventListener, should not wipe out existing `className`,
// e.target is not 100% cross browser, but those are other topics
document.onmouseover = function(e) {
e.target.className = 'highlight';
}
document.onmouseout = function(e) {
e.target.className = '';
}
I received a task at work to create some mini-webpage layout with bootstrap. I decided to base on already done layout (Amoeba). Here is the preview: Amoeba bootstrap link
Well, on localhost almost works except one thing - footer. Just take a look on provided link and then: click Portfolio (from navigation) and then filter the gallery by Photography.
When you will scroll down you will see ugly space. And this is my issue. I dont want that. So i thought that I need a footer OR portfolio div class which will automatically resize to proper size. BUt I dont how how to achieve that. Any tips?
You need only to change the code of modernizr slightly. Change forceHeight to false and will work good.
if (Modernizr.mq("screen and (max-width:1024px)")) {
jQuery("body").toggleClass("body");
} else {
var s = skrollr.init({
mobileDeceleration: 1,
edgeStrategy: 'set',
forceHeight: false,
smoothScrolling: true,
smoothScrollingDuration: 300,
easing: {
WTF: Math.random,
inverted: function(p) {
return 1-p;
}
}
});
}
Im not sure why, but your body element gets some height inline styling. Anyways here is the solution of your problem:
body {
height:100% !important; // inline styles, so you need to add "!important" here
position:relative;
}
#footer {
position: absolute;
width: 100%;
bottom: 0px;
}
You can also add wrapper div if you don't want to add position:relative and height:100%!important properties to your body element. Just see how it works and choose a better option for you.
I have a set of div whose visibility is set to either hidden or visible. Based on this css visibility property i need to add the css property on those div, like
<div class="div-class" style="color:#ff0000; margin: 0px 10px; visibility:hidden;">
[Block of Code]
</div>
Now i need to define the following in style.css file.
.div-class:visible {top:10px;left:50px;}
.div-class:hidden {top:0px;left:0px;}
Is this possible???
yes with css attributre selectors you can do it
try the below css:
.div-class[style*="visible"] {
color: green;
}
.div-class[style*="hidden"] {
color: red;
}
What you are trying to do is not "really" possible.
I mean it's ill thought by design in the first place.
Even Vamsikrishna's solution might not work as expected.
If you set the overflow property to hidden via javascript or inline styles, the .div-class[style*="hidden"] rule will apply since the style attribute will contain the hidden string.
Moreover , setting inline styles on html elements is bad practice itself in most cases.
I suggest you try and learn css principles a little more.
I'd do the following:
HTML
<div class="div-class div-hidden">
[Block of Code]
</div>
CSS
.div-class {color:#ff0000; margin: 0px 10px; top:10px;left:50px;}
.div-hidden {visibility:hidden;}
.div-class.div-hidden {top:0px;left:0px;}
Then you can use javascript to toggle the "div-hidden" class.
You can do something using attrchange - a jQuery plugin ,
like this:
Add "attrchange" script into HTML page like
In Javascrip catch event
var email_ver_input = $("input#email_ver_input.verifyInput");
email_ver_input.attrchange({
trackValues: true,
callback: function (event) {
if (email_ver_input.is(":visible")){
$("#inputcode_wrap").show();
}
}
});