Why is there a giant space under these cells?

Question

My Web site, existing and in revision, both have a number of pages made the same way, but one works differently. I need a clue what to "fix."
Each page has a grid.
Each grid has a table.
Each table has two equal-width columns.
Each table has a random number of rows.
Each cell in the right-hand column ends with text and a period.
The cell immediately below begins with a horizontal rule full width.
Previewing in Mac Safari, all look just right.
   (Odd observation. Though in GL there is no added line space below the last word of text and above the HR that follows, in the browser, there is about 1/4-inch of space, equal to about two lines of text, and this is exactly what I want.  Why GL has no space but the browsers do have space, I am curious. But I am very happy for this effect.)
But on one page,
one page only,
same treatment,
it does not look right. In fact, on that page, below each cell that ends with a word and a period and above the HR immediately below, Safari has about an inch or more of blank space, and in Firefox (which I seldom deal with), it may double that to a big "hole."
Could thi sbe why?
On that page, in one cell in the left column I have used shift-return plus return in combination several times so an item in the left aligns visually with a related item in the right. This is because there is more text on the right side and I want the related subhead in the left to drop down to align with the copy on the right. In another left-hand column on that page, I have used the shift-return and return combination a larger number of times so a logo aligns with the bottom of that cell.
Could the spaces I added within each of two left-hand cells be screwing up the modest spacing belwo the last line of text that I am seeking to achieve, and that I have achieved on all other pages?
Thank you.

Answer 1

> try duplicating the page and lose the grid, just use a table, with heights left at auto
Kath, here's what I did:
New page, no grid.
Drag the component object over. Drag the table over.
View it in Safari as I usually do,
The problem did NOT go away.I suspect that whatever the spacing problems are, they are now built in to the component and table and to avoid them I'd have to start from scratch, retype everything, which I may do.
However I did not know what "heights left at auto" means. Plz xplain and I'll try that.
I also did a variation of what you suggested: dupe the page and delete the grid. I did something similar. Just removed the grid and viewed it in Safari. Same result. (Did not save the changes of course.)
What is most confusing is that that same grid and treatment is used on many other pages which do NOT have that problem. Some weird gremlin in that page.