How do I type the F3 thingy (and the bold version) like the one above? Is there any formatting used?  [ADD] Using &lt;kbd&gt; tag only produces this effect: F3, but not the image above. Does it have variations on different sites?
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Some answers contain characters that look like keyboard keys. They look like      Ctrl + E   What markup do I need to add to make Ctrl and E look like actual keys? That's not mentioned in the formatting help.
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Are there any hotkeys to make a text bold or italic in TeXlipse plug-in? It is tiresome to type \textbf{} and \textit{} each time I need to emphasize some word. Most of other TeX-editors support standard Ctrl+B" and Ctrl+I, but in TeXlipse it doesn't work.
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Is syntax highlighting only applied to code after the post is posted?  // test code  for (int i = 1; i &lt; 4; i++) {    s = s + "abc" + 'd' }   Also, will the formatted blocks that were shown as being separate after each time I hit Enter be merged?
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Are there any lists of default CSS stylesheets for different browsers? (browser stylesheets in tabular form)  I want to know the default font of text areas across all browsers for future reference.
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I very much like the typesetting in Numdam's writeup of . I find the font particularily pleasing, and the headers are nice as well. I've heard this is how it looked in the original release; I would like to snatch it. Does anyone know the name of the font, or does anyone have a general setup?
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Is there a way to add some custom font on a website without using images,  or some other graphics?  For example, I was working on a wedding website, and I found a lot of nice fonts for that subject. But I can't find the right way to add that font on the server. And how do I include that font with CSS into the HTML? Is this possible to do without graphics?
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I want to write something basic like "10 $US" but sometimes it makes the text look weird. It changes the font and writes italic text. And sometimes it will insert a newline. For example in my .  How can I safely insert a dollar sign?
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I navigate with Ctrl-n,p,f,b (readline/ keys), so that I don't have to move my hands too much and get  again. Is there a way to disable Ctrl-b being hotkey for bold?  Note that this is not just an Emacs thing. Standard web browsers, like Firefox and Chrome, use things like  Ctrl + K and Ctrl + L to navigate to the Google search bar and address bar respectively.
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I accidentally, discovered that using | in text mode produces an em dash. I did a quick search, but I could not find a reference where this is noted. I wonder if there is any difference between this and ---? Otherwise, it seems easier to just type one character instead of three.
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How can certain programs set background and font colors, write characters to the same location on screen (e.g. to the third row, fifth column) more than once?  Some examples are the progress bar displayed by curl google.com &gt; a, some installation screens and nearly any text editor.
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I've always been confused by the differences in behavior of font commands.  For example, we have \mathrm{} and \texttt{}, which can be used like this: \texttt{hello} world.  And then we have \it and \bf which must be used as {\it hello} world. If one uses \it{hello} world, both words are italicized.  Internally, what is the difference here? And was this difference a conscious design decision? If so, why?
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How do i type ♣ (alt+5) and ♥ (alt+259) and other characters like it on a keyboard w/o a numberpad? using the numbers 1-9-0 doesnt activate those characters. Note i want to TYPE and not use that windows program to select/copy/paste
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Is there a \urlstyle{tt} (or something else to that effect) for \href to make it the same font as \url links? I'm happy with any monospace font, as long as they both (\url and \href) show up the same.
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Is there a quicker way of doing boldface in math mode instead of typing out \mathbf{} each time?  (It gets cumbersome when you denote simple vectors with boldface...)
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One thing that's really bugged me since switching to Chrome is that Ctrl + F behaves slightly differently from Firefox.  In Firefox, if you have text highlighted and hit Ctrl + F, it'll start finding with that text.  Is there any way of getting Chrome to do this?
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How does the code  work with Ctrl + K? I am new to Stack Overflow.   I can't get it with Ctrl + K. I  press space button for 4 times in each line I post.
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What's the recommended syntax for an image with a hyperlink? I tried doing it with the markdown toolbar buttons and the image and link buttons conflict with each other, so I had to resort to HTML. For example, to do this:  These work properly: &lt;a href=&quot;https://meta.stackoverflow.com/users/44330/jason-s&quot;&gt;![alt text][1]&lt;/a&gt; [1]: https://www.gravatar.com/avatar/dd5a7ef1476fb01998a215b1642dfd07  &lt;a href=&quot;https://meta.stackoverflow.com/users/44330/jason-s&quot;&gt;    &lt;img src=&quot;https://www.gravatar.com/avatar/dd5a7ef1476fb01998a215b1642dfd07&quot;&gt; &lt;/a&gt;  [&lt;img src=&quot;https://www.gravatar.com/avatar/dd5a7ef1476fb01998a215b1642dfd07&quot;&gt;][2] [2]: https://meta.stackoverflow.com/users/44330/jason-s  This does not: &lt;a href='https://meta.stackoverflow.com/users/44330/jason-s'&gt;![alt text][1]&lt;/a&gt;  (single quotes not allowed?) Is there a way to do the same thing in Markdown without having to resort to HTML?