Override all CSS styles for block - html

I'm using HTML examples on my website (using Crayon) and want to show output as well.
But I want the output to show as pure as it would have without any of my website's own stylesheets.
I can of course do this with an iframe, but that seems tedious. Is there perhaps another trick or library that anyone is aware of?
Thanks

Ended up doing this. Works well...
$('.crayon-title').click(function() {
var content = $(this).parent().siblings('.crayon-plain-wrap').children('textarea').text();
var x=window.open();
x.document.open();
x.document.write(content);
x.document.close();
})

Related

CSS conflict when using iFrame [duplicate]

Is it possible to change styles of a div that resides inside an iframe on the page using CSS only?
You need JavaScript. It is the same as doing it in the parent page, except you must prefix your JavaScript command with the name of the iframe.
Remember, the same origin policy applies, so you can only do this to an iframe element which is coming from your own server.
I use the Prototype framework to make it easier:
frame1.$('mydiv').style.border = '1px solid #000000'
or
frame1.$('mydiv').addClassName('withborder')
In short no.
You can not apply CSS to HTML that is loaded in an iframe, unless you have control over the page loaded in the iframe due to cross-domain resource restrictions.
Yes. Take a look at this other thread for details:
How to apply CSS to iframe?
const cssLink = document.createElement("link");
cssLink.href = "style.css";
cssLink.rel = "stylesheet";
cssLink.type = "text/css";
frames['frame1'].contentWindow.document.body.appendChild(cssLink);
// ^frame1 is the #id of the iframe: <iframe id="frame1">
You can retrieve the contents of an iframe first and then use jQuery selectors against them as usual.
$("#iframe-id").contents().find("img").attr("style","width:100%;height:100%")
$("#iframe-id").contents().find("img").addClass("fancy-zoom")
$("#iframe-id").contents().find("img").onclick(function(){ zoomit($(this)); });
Good Luck!
The quick answer is: No, sorry.
It's not possible using just CSS. You basically need to have control over the iframe content in order to style it. There are methods using javascript or your web language of choice (which I've read a little about, but am not to familiar with myself) to insert some needed styles dynamically, but you would need direct control over the iframe content, which it sounds like you do not have.
Use Jquery and wait till the source is loaded,
This is how I have achieved(Used angular interval, you can use javascript setInterval method):
var addCssToIframe = function() {
if ($('#myIframe').contents().find("head") != undefined) {
$('#myIframe')
.contents()
.find("head")
.append(
'<link rel="stylesheet" href="app/css/iframe.css" type="text/css" />');
$interval.cancel(addCssInterval);
}
};
var addCssInterval = $interval(addCssToIframe, 500, 0, false);
Combining the different solutions, this is what worked for me.
$(document).ready(function () {
$('iframe').on('load', function() {
$("iframe").contents().find("#back-link").css("display", "none");
});
});
Apparently it can be done via jQuery:
$('iframe').load( function() {
$('iframe').contents().find("head")
.append($("<style type='text/css'> .my-class{display:none;} </style>"));
});
https://stackoverflow.com/a/13959836/1625795
probably not the way you are thinking. the iframe would have to <link> in the css file too. AND you can't do it even with javascript if it's on a different domain.
Not possible from client side . A javascript error will be raised "Error: Permission denied to access property "document"" since the Iframe is not part of your domaine.
The only solution is to fetch the page from the server side code and change the needed CSS.
A sort of hack-ish way of doing things is like Eugene said. I ended up following his code and linking to my custom Css for the page. The problem for me was that, With a twitter timeline you have to do some sidestepping of twitter to override their code a smidgen. Now we have a rolling timeline with our css to it, I.E. Larger font, proper line height and making the scrollbar hidden for heights larger than their limits.
var c = document.createElement('link');
setTimeout(frames[0].document.body.appendChild(c),500); // Mileage varies by connection. Bump 500 a bit higher if necessary
Just add this and all works well:
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
If the iframe comes from another server, you will have CORS ERRORS like:
Uncaught DOMException: Blocked a frame with origin "https://your-site.com" from accessing a cross-origin frame.
Only in the case you have control of both pages, you can use https://developer.mozilla.org/en-US/docs/Web/API/Window/postMessage to safely send messages like this:
On you main site(one that loads the iframe):
const iframe = document.querySelector('#frame-id');
iframe.contentWindow.postMessage(/*any variable or object here*/, 'https://iframe-site.example.com');
on the iframe site:
// Called sometime after postMessage is called
window.addEventListener("message", (event) => {
// Do we trust the sender of this message?
if (event.origin !== "http://your-main-site.com")
return;
...
...
});
Yes, it's possible although cumbersome. You would need to print/echo the HTML of the page into the body of your page then apply a CSS rule change function. Using the same examples given above, you would essentially be using a parsing method of finding the divs in the page, and then applying the CSS to it and then reprinting/echoing it out to the end user. I don't need this so I don't want to code that function into every item in the CSS of another webpage just to aphtply.
References:
Printing content of IFRAME
Accessing and printing HTML source code using PHP or JavaScript
http://www.w3schools.com/js/js_htmldom_html.asp
http://www.w3schools.com/js/js_htmldom_css.asp

Multi-column Headers With Kendo Grid

I don't know what this is called, and I've messed around a lot with the headerTemplate but can't figure out how to produce this look. I need the second row of column names to 'act normally' in terms of sorting and filtering, but everything I try breaks that. I have no idea if headerTemplate is even the right way to do this? Is there a name for this kind of grouping? My research is turning up a whole lot of nothing, so I suspect I'm using the wrong keywords. What is this layout called?
Note: for security reasons I can't post a code dump (super nervous about the image too). If a specific thing is needed, please let me know and I'll try to anonymize it. But, mostly I'm just looking for suggestions to try other than playing with the headerTemplate.
This is now natively supported by the Kendo grid. Here's an example.
You won't be able to achieve multirow Group headers via Kendo grid on MVC, although there were discussion to add the feature in the current version(2014Q2) of Kendo. See below link for more reference:
Pivot Grid StackOverflow Reference
However, you can achieve the multirow header option via jquery on databound event of the grid. But it is a workaround rather than a perfect soultion.
Please see the js function for databound event to add multirow header:
function onDataBound(arg) {
var myElem = document.getElementById('trParentHeader'); //Check if Parent Header Group exist
if (myElem == null){ // if parent Header doesnot exist then add the Parent Header
$("#grid").find("th.k-header").parent().before("<tr id='trParentHeader'> <th colspan='2' class='k-header'><strong>Products + Unit Price</strong></th> <th scope='col' class='k-header'><strong>Single Units in Stock</strong></th></tr>");
}
}
For more understanding and a working example please see below Sample:
MultiRow-Column Header Sample
Please let me know if you if you have any queries.

Override a CSS style on one page

I have a page (http://www.gardensandhomesdirect.co.uk/newhomepage)
I want to make the center column (#content-column) 930px for this page only, which will eventually become the homepage.
The CMS used is NetSuite, and is notoriously difficult to work with.
What is the best way to do this? Is it possible with just CSS/HTML commands or JavaScript?
Since it's a CMS you probably cannot add markup easily so I'm thinking some jQuery would be a simple solution here...
$(function () {
var path = location.pathname.substring(1);
if (path) {
var regex = new RegExp('newhomepage$', 'gi');
if (regex.test(path)) $('#content-column').addClass('yourClass');
}
});
This should add "yourClass" to the element just on that page.
Then you can add to your external CSS...
.yourClass {
width: 930px !important;
}
I feel your pain
I have used Netsuite extensively and found )after many hours of hair pulling and expletives) that the best solution (for us) has been to create the home page and any unique landing pages as Hard coded Hosted pages (hosted on Netsuite) and reserve Netsuite's CMS system for item pages where you need the add to cart functionality.
Take it from me in the long run it'll save you hours of frustration :-)
Of course you can use Netsuite tags all over the place as long as you host the pages in your "site" folder
I have no experience with Netsuite so please take this as is..
I would try to add a custom style tag to the document like this:
<style>
#content-column{
width:930px !important;
}
</style>
If you only have access to the HTML of that page, then put an inline style attribute in the center column's HTML. Example:
<div id="content-column" style="width: 930px;">

Using visibility: hidden and display: none together in CSS?

The reason I want to use the together is that I want to hide the content like display: none does, without leaving any whitespace as visibility: hidden does.
At the same time I want the hidden content not to be copied when the user copies the entire table from the webpage, not because it is sensitive information but because the user hid the field and therefore doesn't want it copied. visibility: hidden doesn't copy but display: none does, so I have quite a dilemma.
Anyone know a solution?
Edit:
What I ended up doing was just what was suggested, save the information as Javascript (as it is not sensitive information anyways) and create/remove dynamically with Javascript.
I do not think giving the element visibility: hidden prevents the user copying the information in the table, although this may be browser specific behavior. Have a look at the test I've set up: http://jsfiddle.net/a9JhV/
The results from Firefox 3.6.8 on Windows 7 is
Copy ME! Don't copy me :( Copy ME! Copy ME!
Copy ME! Don't copy me :( Copy ME! Copy ME!
Which doesn't work as expected.
I've cooked up some code, it took the quite a bit work of cook up... have a look here: http://jsfiddle.net/a9JhV/7/
It uses jQuery to hide and show the table columns - actually removes them from the DOM, not just play around with their visibility and whatnot. Whee!
Why not remove the node from the page? You could accomplish this by using:
<script type = 'text/javascript' language = 'JavaScript'>
document.getElementById('yourDivId').innerHTML = '';
//OR
document.removeChild(getElementById('yourDivId')); //(I think this is right...document might need to be replaced by the div's parent)
</script>
You should remove the "hidden" DOM object using javascript and then recreate it again if user wants it back. Data from deleted records can be stored in session storage or hidden inputs for example.
If you want elements HIDDEN from the source, place them in a separate text file and load it using an ajax-like call... this will prevent the html from being in the source.
If you place a clear image OVER the content they also will not be able to highlight it easily (and by using javascript you can likely disable their ability to do a ctrl+a)
hope that helps!
It's a good idea to create an object to represent the table:
var myTable = function(tableName){
// If you want to assign columns dynamically you could create this.addColumn();
this.Columns = new Array(
new Array("row1","row2","row3","row4"),
new Array("row1","row2","row3","row4")
);
this.reBuild = function(){
for (col in this.Columns){
for(row in this.Columns[col]){
// put the cell in the table
}
}
};
};
I didn't test this code, it should just illustrate the gist of storing and building a table.

Change CSS locally per domain

I want to add CSS to pages with a certain URL in much the same way that Greasemonkey adds JavaScript. I guess I could inject some CSS with a script, but that isn't as clean.
Are there any browser plugins that let me do this? It doesn't necessarily need to be a Firefox one.
There's the Stylish add-on for Firefox. It supports global, per-domain, and per-URL user stylesheets. It seems to work well for what I use it for, although I admittedly haven't played around with it very seriously.
If you have access to jQuery, you could do this pretty easily:
var css_href = "path to css";
var head = document.getElementsByTagName('head')[0];
$(document.createElement('link'))
.attr({ type: 'text/css',
href: css_href,
rel: 'stylesheet,
media: 'screen''})
.appendTo(head);
[Source]
This can also be done pretty easily with vanilla JavaScript:
function addStyle(style) {
var head = document.getElementsByTagName("HEA­D")[0];
var ele = head.appendChild(window.document.c­reateElement( 'style' ));
ele.innerHTML = style;
return ele;
}
addStyle('#import "/URL/TO/STYLESHEET;"');
[Source] (Apparently from "Dive into Greasemonkey" by Mark Pilgrim originally)
You might want to make sure your styles have !important declarations though.
Having said that, it should be easy to remove the existing stylesheets this way too and perhaps even iterate elements and remove inline styles.