Posted in css
12
6:20 am, August 31, 2018

table border collapse

I see this quite often when dealing with tables the border-collapse: collapse; used on a table as so:

table {
    border-collapse: collapse;
}

So what is the point of doing this?

It seems to help in the styling of the table, so if you add border collapse you can format the borders over the whole table, such as the following example.

Normal Table vs a border-collapse Table

Normal Table

.table-normal {
	border:1px solid #999;
}
Some Data Some Data Some Data
Some Data Some Data Some Data

Collapse(d) Table

.table-collapse {
	border-collapse: collapse;
	border:1px solid #999;
}
Some Data Some Data Some Data
Some Data Some Data Some Data

Lets see if they look the same one using border-collapse: collapse; and one not. It seems that they look the same.

I'll try adding a border to the bottom of the td elements on both.

Actually the global styles on this page seem to be over-riding the tests so ill have to move the table testing to a bare page to see how it reacts.

Here is the external table testing example

You can see on the collapsed table that the borders overlap the table rows rather than the normal table where the borders are seperated.

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This is my test area for webdev. I keep a collection of code snippits here, mostly for my reference. Also if i find a good site, i usually add it here.

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"Olivia, my eldest daughter, caught measles when she was seven years old. As the illness took its usual course I can remember reading to her often in bed and not feeling particularly alarmed about it. Then one morning, when she was well on the road to recovery, I was sitting on her bed showing her how to fashion little animals out of coloured pipe-cleaners, and when it came to her turn to make one herself, I noticed that her fingers and her mind were not working together and she couldn’t do anything. 'Are you feeling all right?' I asked her. 'I feel all sleepy,' she said. In an hour, she was unconscious. In twelve hours she was dead. The measles had turned into a terrible thing called measles encephalitis and there was nothing the doctors could do to save her. That was...in 1962, but even now, if a child with measles happens to develop the same deadly reaction from measles as Olivia did, there would still be nothing the doctors could do to help her. On the other hand, there is today something that parents can do to make sure that this sort of tragedy does not happen to a child of theirs. They can insist that their child is immunised against measles. ...I dedicated two of my books to Olivia, the first was ‘James and the Giant Peach’. That was when she was still alive. The second was ‘The BFG’, dedicated to her memory after she had died from measles. You will see her name at the beginning of each of these books. And I know how happy she would be if only she could know that her death had helped to save a good deal of illness and death among other children."

I just checked google books for BFG, and the dedication is there. 

https://www.google.com.au/books/edition/_/quybcXrFhCIC?hl=en&gbpv=1 


Roald Dahl, 1986