R Knitr functionalities missing - r

On the following image, we can see the three buttons on the far right.
On the link below, the three buttons on the far right disappear.
Could you help me solve this issue?

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r dygraph plot not correctly displayed in right to left Shiny app

I have made a shiny app in Persian language which the Shiny admin css has been changed completely to rtl direction. I have only a problem with my dygraph plot which not displayed correctly. My screenshots are shown below. As you can see, when I inspect the part which is not displayed on the correct place and then I change text-align from left to right in element.style{}, everything will be OK. But how can I change the css for this element.style? This is a div within my plot1 div! I tried many ways to change the css but it didn't work. Moreover in the css file of dygraph I changed all of left-aligns to right but it didn't work too. Thanks in advance for any comment.
I’ve fixed as many RTL issues as I can in Dygraph 2.2.0 so please upgrade to that version. If there are still any left afterwards, please provide an MVCE so that they can be fixed; it’s hard for people who don’t normally use an RTL environment.
https://dygraphs.com/tests/rtl.html works (I’m not sure if you’d flip the axis label or something…) and most things can be done using just CSS now.

datatables sorting css issue

I am using the following guide to change the sorting icons
https://datatables.net/blog/2014-06-06
I am using the datatables css file for this integration:
https://cdn.datatables.net/plug-ins/1.10.12/integration/font-awesome/dataTables.fontAwesome.css
However, once applied there is an odd behaviour with one of the old arrows still appearing?
screenshot of issue here (highlighted in red):
Appreciate some assistance.

Weird aptana highlights. What do they mean?

I was wondering what the highlights in the source code meant in aptana. I asked all my friends and none seem to figure it out.
They are shades of gray in front of lines that do not seem to follow any rules. Please note that line 4 is just the line cursor is on.
I have attached a screenshot to exemplify it.
Thanks.
Go to Window->Preferences->Aptana Studio->Themes, find the embedded source line, and adjust its background so that it matches the other lines.

Twitter Bootstrap Image Centring With Overlay

I'm trying to get a centered image that spans the entire page, with a small text box overlay. You can see my attempt at www.cloudtute.com.
Unfortunately this doesn't work in all browsers and the form elements look weird in some browsers. E.g. trying it in internet explorer 9 it comes up tiled and the text box is black!
I was trying to go for a similar effect to the image on www.airbnb.com which works in all browsers - can anyone tell me where I'm going wrong please?
From what you've explained it shouldnt be too difficult. However www.cloudtute.com isnt opening for me, it comes up with not found, so I cant see your code. If you can add your current code or get the website working again I can help out.

Having trouble with making horizontal buttons

How do I fix this navigation bar?
I tried making it on my own but I just can't get everything to work.
This is the button in all three states:
The red background is #490000 and it should be a separate div.
The text on top of the buttons is a custom font but that doesn't matter in this case.
I've thrown together a working sample you could study. Can you elaborate on where you had issues so I can explain the solution?

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