Investigate increasing the density in the feed preview

[nt1m]

See https://github.com/nt1m/livemarks/issues/63#issuecomment-447285335

[johnhawkinson]

Specifically:

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I care only about the preview function of RSS in Firefox, which I use for both informational and semi-diagnostic purposes. The styling and presentation in LiveMarks seems to me much less nice than what I am used to in FF63. Of course some of this is "getting used to it," but the information density is far lower ~and the time information is not localized to the local timezone anymore.~

~It would be nice to make some changes to both of these, esp. where LiveMarks is the only extension in the "Replacements for the built-in feed reader" page's "curated collection of readers" that purports to have feed preview support.~

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Here's a comparison of FF60 ESR (which is nearly identical if not identical to FF63) versus LiveMarks:

Those are both rendering https://ecf.mad.uscourts.gov/cgi-bin/rss_outside.pl.

[evilpie]

This should be relatively easy to fix with some CSS changes. I think it might actually make sense to use an iframe for every description instead of an iframe containing all feeds. This way the scrollbar would be for the whole content area again.

[nt1m]

@evilpie An iframe for every description would have different issues, and the scrollwheel wouldn't work when scrolling over the iframe

[evilpie]

#125 made the feed preview a bit more compact.