I want to embed the outcome of Jenkins latest version(https://updates.jenkins.io/stable-2.204/latestCore.txt) in a splunk dashboard and change the font size. I can change the background color but I couldn't find a way of changing the text size. Any ideas?
<iframe style="background: "#FF0000" src="https://updates.jenkins.io/stable-2.204/latestCore.txt">></iframe>
you cannot modify the content of an external resource. You cannot do this because of cross-site scripting restrictions.
If the html file that you're trying to embed under your control then change it in the source.