Where exactly are you having the issue? Can you please also provide the HTML that you are using? I know we've fixed some line height issues a few minor versions ago. Are you on the latest updates for your supported version of Mahara?
Cheers
Kristina
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I was just reading that WebKit browsers can add <span style="line-height: ?? "> tags for some reason.
Are you using a chrome browser? can you test in another browser (say firefox) to see if it happens there?
Also are you using any custom tinymce editor css?
Cheers
Robert
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