How do I center this code in the middle of the page?

I can put that up here then: https://testblog567895.blogspot.com/

body {
background: #000000;
padding:0;
margin:0;
}

Yes, you can.

How would I get: https://testblog567895.blogspot.com/

to be the exact same fit as: http://testblogty678.blogspot.com/

It’s off very slightly.

What do you think would need to be adjusted?

The links are the same.

My bad, I just fixed them.

How would I get:
https://testblog567895.blogspot.com/
http://codepen.io/dszdasdsa/pen/dXNVPr


to be the exact same fit as:
http://testblogty678.blogspot.com/
http://codepen.io/dszdasdsa/pen/VjPMmJ

Its HTML table code vs flexbox code. Although one can probably tweak them to look exactly like each other, that strikes me as a waste of time.

BTW - you never looked at the CSS display:table code that I posted here:
I did it: Complete! and I used CSS - #168 by ronpat .

There were no errors, either.

I want to figure it out.

What do you think, if you had to guess, would need to be tweaked on the 1st code?

Yes I did and I replied back with: I did it: Complete! and I used CSS - #172 by asasass

Those images do not resemble the code in either file.

If I don’t want the code to collapse when I move the screen in smaller, what do I adjust?

I have them on my computer: asasass12, asasass13

inline vs without inline.

And NO TABLE ELEMENTS. Your image shows table elements.

So, because one has a table, that’s what causes the size difference between the 2?

I sent you some code a short while ago that collapsed when the screen was narrowed. You didn’t like it. You asked how to change it so it did not narrow. Which property did I show you that allows the width of the parent container to change as the width of the browser window changes and how to change it to a fixed width property? We just talked about it and I posted code.

Referring to your blogspot postings in post #47,
Yes, one is table code and one is flexbox code. That is what I said. And then you asked if the first one could be tweaked to look like the second one. Sorry if I am repeating myself.

 

To minimize confusion, the current topic has nothing to do with my two posts from the previous topic. I caused that problem by mentioning them; then the OP posted a screen shot of who knows what. My bad.

What causes these differences?

50 Right 50 Left [table]

50 + 50 = 10 + 2 = 102

vs.

49 Right 49 Left [flexbot]

49 + 49 = 98 + 2 = 100

the + 2 is the blue in the middle.

On flexbot, when I change padding left & right to 51 that equals 50 Right 50 Left same as the table.

Do tables get measured differently than non tables?