I used w3.css (w3schools.com) and other ideas on that website. Then I thought about it. - The merged result - is this page.
The future is not going to stand still. So there is a need to keep up with what is going on - the time to so was found (COVID-19).
Dimensionalized.com 
Here I am on Vancouver Island, (been here for awhile now but since COVID-19) & stuck at home more often now. So I'm updating my old skills.
I started working these pages about March 2020 and
since then they are being updated as shown: Apr/23/2021
Am I online or offline?
Make the columns in this code match the height of the tallest column.
But the columns will automatically stack on screens smaller than 600px.
Many years ago I spent a fair bit of time learning Java. Then after that, I started learning JavaScript (2 different languages but same concepts). Now to make use of all that, I then needed to learn HTML and CSS(Cascading Style Sheets). -- Finally, much time went by to the point where I needed the time to upgrade my old skills. So along came COVID-19. Now I had the time, or at least, a little bit of time...
So this page that you are looking at, is the first page I just started throwing everything I learned into it. So it might look a bit busy.
I finally noticed (Jan.2021) that it needed fixing or a redo using flexBox. The old page is here.
Press the X to close this, -or- you can move it.
This code here is a modified 2+ sets of code..
This page was last updated on:
Apr/23/2021 06:12 pm
Hello World! ➣
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This Info Snackbar - tooltips/popups shows a message at the bottom of the screen.
When the image is taller than the element[box] containing it, and if it is floated, it would overflow outside of its container boarder.
Clearfix fixes that problem as you can see.This project(CSS, JavaScript) of updating some of my original skills from years ago (Ctrl + C > Ctrl + v then edit test and refine)
began from to almost every weekday in 2020.
To be more precise, during COVID-19, til about the end of May June.
Of course I've had a lot less time since the start of June. ... And here we are, it's already .
Input your age and click the button:
Cut into this page is an iFrame (otherwise it messes CSS of this page).
If you ADD to the (My To Do List), it won't stay (Just a Demo).
I did not use the Responsive Iframe code as that is a whole new topic!!
