montserrat | A retreat management application written in Laravel | Build Tool library

I am trying to render a grid of large buttons using bootstrap with React.

I have css for hover and focus effects. When user loads the screen, I want one of the buttons loaded as focused. I tried putting autofocus in the div. It does the job, however there is a weird formatting issue. Some thin white border on top of my regular borders renders. I couldn't figure out the exact issue and how not to display this white thin border when a user loads the screen.

My html:

I have a div container that will layout each item evenly for the full width of the screen.

I would like to adjust the BACK div behind the selected input dynamically. I know in theory how to do it: do a transform: translate to #after of the BACK div. But I have no idea how to calculate the correct px value, depending on what input tag has been selected.

The codepen to view this is available here: https://codepen.io/depechie/pen/oNZagLa

The desired end result visually should be like following picture. So the BACK div ( the blue outline ) should be placed behind the selected input.

I am using bootstrap-5. I couldn't find it a solution. How can this work for top and bottom, but not for right and left? Can you please help me? Okay as a default, there may be a value for bootstrap, but i am changing it on css. So what I wrote there must have worked I think. How can I get it worked?

I am learning the basics of html and css, and am trying to build my own blog from scratch, coding it all from the ground up, because that's the only way I'll really learn. I want it to be responsive to different screen widths, so I am using the bootstrap grid, but building my own custom components because the bootstrap ones seem a bit too cookie-cutter. Specifically, what I am having a hard time with is a single DIV element at the top of the page, where I want to contain my most recent blog post. It contains a floated image, and two columns of text. I have placed everything within rows in the grid, and what I am expecting is this: When someone begins minimizing the screen, or when a smaller device is used to view the site, I want the words to just realign to whatever screen size they have, and I do not want the scrollbars to appear. Is there a way this can be done. I have included the code below, (all of it), but the relevant DIV is posted first there at the top, and a picture of what it looks like at full screen size, and also one where the window is reduced in size.

Full size:

Resized screen:

Here is the DIV, and the relevant CSS. Just in case I don't understand what might be relevant, the entire code is at the very bottom. Thank you for any time taken to help me. There are problems with positioning at the top, too, but I think I can figure that out, or I'll have to make that another question. Thanks again.

DIV Element HTML:

I don't understand why in Positioned widget, I get an error that child parameter isn't defined as well as in AnimatedContainer the 'duration' parameter isn't defined.

I checked the official documentation first, but don't know why it's not working.

https://api.flutter.dev/flutter/widgets/Positioned-class.html

https://api.flutter.dev/flutter/widgets/AnimatedContainer-class.html

I'm trying to modify the 'N' default text style for the flutter quill editor. However, I can't seem to find the option in the DefaultStyles class. Below is my current code:

I know similar questions have been asked but not the same process and code. I have an array of images and i need to loop through them and apply fade in for the displaying image and fade out for the removing image. I have been able to achieve the looping and displaying of images my only problem is the fade in and fade out process.

Here's my code snippet: