CSS tuning

[rlaemmel]

We need a very strong separate between:

• per-contribution summary table and
• first regular section

[rlaemmel]

Adding:

• The font size of the tags should be a bit smaller because currently the code ends up in small font when trying to show all columns of the metadata table.

[rlaemmel]

I think this issue could be closed, except that I would like to add one sub-issue:

Please make the list of contributions on the landing page more appealing.

• Perhaps use a table
• Use different font for name of contribution versus explanation.

[rlaemmel]

And another comment. I am looking at this:

I have these concerns:

• Just saying "MetaLib" at the top is not very telling. I just edited the github description to read like this: A Chrestomathy of DSL implementations. So maybe add this after MetaLib.
• The separation between the list of contributions and the long table is not clear. In fact, the section with the long table does not have any header. Proposal: use the header "Ontological summary".