I am using a Jupyter Notebook for an interactive coding demonstration. There is an exercises block where the user should enter their own code to try and solve a problem.
I now want to optionally give some further instructions, i.e. hints how to solve the problem, which should be hidden by default.
I found this answer, which links to this site here, using JavaScript in a raw nbconvert cell to hide output cells. However, this only seems to work for exported notebooks, while I want something in the notebook itself.
So I've tried adding similar JS into a Markdown cell, but that doesn't work because the JS gets sanitized away.
I'm not sure if CSS also gets sanitized, but raw HTML works. Is there a good way to create a hidden/folded text paragraph with something like "click here for further instructions" to show the text?
The best I could come up with so far was a title attribute to create a mouse-over text, unfortunately without further formatting:
<span title="Instruction text goes here">Mouse over for further instructions</span>
The <details> tag is pure HTML which does just that, and which does not get removed by the sanitizer. It can have a <summary> to describe the contents of the fold.
<details>
<summary>Click here for instructions</summary>
Instructions go here
</details>
See also: https://developer.mozilla.org/en-US/docs/Web/HTML/Element/details
Related
I am trying to create a TOC for my Markdown blog.
The methods I am finding here... : Markdown to create pages and table of contents?
....do not work for me because I am naming all of my headers # _</>_ The Setup because I am using CSS on to style the "", giving each header a nice colored Icon next to it. If I simply use ```# The Setup ```` it works great.
This causes issues whenever I try to use [The Setup](#The-Setup).
I tried a few things like [The Setup](#_</>_-The-Setup) and other things, but I can not get it to work.
If someone can point me in the right direction I would greatly appreciate it. Also, if anyone has a better way of adding custom icons next to headers, I think that would be the better way to go about it.
As always, thanks in advance.
The general solution is to examine the rendered HTML output to see what the tool is converting the special characters to, in the HTML's element ID. Every tool could handle the conversion differently (it could convert special characters to -, _, or just remove special characters). Some examples:
<h1 id="_____the-setup">The Setup</h1>
<h1 id="-the-setup">The Setup</h1>
<h1 id="the-setup">The Setup</h1>
Once you have identified the exact id that the tool is using, then you use that value as the heading link in the markdown's table of contents. For example:
[The Setup](#_____the-setup)
Now, the tricky part is that not all Markdown tools will export the rendered HTML, including VS Code. The workaround for VS Code is:
Open the markdown preview mode (which renders to html internally).
Open the VS Code Developer Tools (Help > Toggle Developer Tools).
Use DevTools to inspect the element (in this case, the heading element for "The Setup").
I see that VS Code named the id as the-setup, so in the markdown's table of contents, I write [The Setup](#the-setup). Now the table of content hyperlink works in VS Code. Caveat: it might not work in other Markdown tools if they render a different HTML element ID!
Another shortcut now available in VS Code (1.70 July 2022), is that markdown can autocomplete the header ID. So you just type #, and it will list the valid IDs:
I want to extract data from a website, but it seems that the elements that I want to extract are not "accessible".I also discovered they seem to be pseudo-elements. I can se that their tags are marked with a # before in my web-inspector.
Moreover, while using XPath I can't extract the text I want to access. Their is a point in the CSS "cascade tree" when I can't extract the content of a tag, you can see it below.
Here I can extract information up to the tag 'content fond'. But when I ask for the tag "fos_comment_thread" which is the tag just below, the return is empty. And it is especially this tag which is a pseudo-element, and the following behind. However the text I want to access is even more deeper in this part of the CSS tree...
Input
reponse.xpath=('//div[class#='row']/div[#class='span9 forum']/div[class#='content fond'].extract()
Output
['<div id="foc_comment_thread"<div>']
Input
reponse.xpath=('//div[class#='row']/div[#class='span9 forum']/div[class#='content fond']/div[id#='fos_comment_thread'].extract()
Output
[]
I don't understand why I can't extract, I think it is due to the fact that the rest of my tags are pseudo-elements,but I haven't found a solution to solve the problem...
The first thing you need to do is to not using your web-inspector tool and look at the raw HTML of the website.
Web inspectors take into account the transformations made by Javascript and may show you an update HTML after Javascript execution, that scrapy obviously can't see.
I have an HTML page which needs to display some HTML generated by the user on the Administration area (like a blog, for instance). The problem is that the user sometimes needs to copy-paste tables and other "garbage" content from Word/Excel to the WYSIWYG editor (that has the proper "paste from Word" function). This causes the resulting HTML code to be very dirty.
It wouldn't be a problem unless some of these pages are shown totally wrong: other divs AFTER user's HTML code are not in their supposed position, floats are not respected... etc...
I tried putting a div:
<div style="clear: both;"></div>
without success. I even tried with iFrames, but iFrames accept only external webpages (if applicable...).
The question is: is there any tag or method to put a part of an HTML code inside a webpage discarding all formatting AFTER this code?
Thank you.
To my knowledge, you simply want to end all divs. HTML is a very simple code, with very simple options. Your example doesn't work because HTML isn't that advances. You can either start a function <...> or end a function .
Ideally what you want is a piece of code that puts their work in a separate frame entirely, so as soon as the page passes their code, it goes back to the correct formatting.
Or, you could be really sloppy and put one hundred 's in, just in case.
I want to show some source code with the WebBrowser control on a winform. And I want to decorate the source code with HTML tags, such as color, font, and size. But I found it difficult to display the indent properly.
To be precise, my source code are held in String[], and each String holds the proper indent (space or tab) already. But it seems these kinds of indent are just ignored by the WebBrowser control.
Could someone tell me how to?
I like to paste my code in a Gist and then display it that way. Github will recognize the code and format it accordingly.
If you're going to be doing it often you could try markdown.
Or use a one-off formatter like Syntax Highlighter.
The <pre> element (using <code> elements with appropriate class names to mark up the parts you want to syntax highlight)
<pre><code class="javascript"><code class="keyword">function</code> <code class="name">foo</code>()…
You might want to look into this JavaScript library to highlight and format your code. http://code.google.com/p/syntaxhighlighter/
Or you can check out a service like this - http://pygments.appspot.com/ or this - http://hilite.me/
I have a web page with a read-only text box which shows some HTML code:
<input type="text" readonly="true" value="<table>...</table>"/>
There is also submit button, which causes page post back and XSS validation to trigger. I don't want to turn off XSS.
I also tried disabled="disabled", but then the user is not able to copy the text in the text box.
So I thought that using div and span which can give same look and feel would suffice and negate the need for turning off the validation. While trying this, I am struggling to restrict the string in one line. As in text box, it is a single row with column size and text is shown nicely, we can also copy text.
Is there a better solution for what I'm trying to do?
If I understand you correctly you're trying to show some example code in a web interface that is formatted for easy consumption by the end user.
As a general rule, you should wrap code snippets in <pre></pre> tags, I would then suggest having a go at using: http://alexgorbatchev.com/wiki/SyntaxHighlighter to format the code as if you were viewing in an IDE.
This will prevent you from having to turn of the XSS checker.
you could use <pre> tags
check this link