This document is a step-by-step guide on using Flexbox for creating a responsive website layout. It outlines the process from wireframing design elements for different devices to implementing HTML and CSS for a functional layout with mobile-first design principles. The guide emphasizes the use of Flexbox for effective layout on desktops, tablets, and mobile devices, while also providing resources and contact information for further assistance.

1. Welcome To
Flex Web Development
Use flexbox to create a responsive website layout
(step-by-step guide)
Flexbox is a relatively new front-end feature that greatly simplifies the process of
creating a responsive website layout. In the past, in order to create a layout that
looked good on a website, you had to use tables or float grids. Furthermore, those
approaches aren't the most effective for responsive design, which ensures that the
website looks good on desktop, tablet, and mobile platforms. Learn how to use
flexbox if you want to stay up to date Flex Web Development with web
development trends. Due to the fact that float grids are rapidly becoming obsolete.
This is a step-by-step tutorial that will walk you through creating a basic
responsive website layout.
Here's a brief overview of the steps you should take in this tutorial:
How to create a basic website layout
 Draw the layout as it will appear on a desktop, tablet, and mobile device.
 Utilizing semantic HTML and CSS, begin coding the fundamental layout.
 Construct the remaining layout section by section.
 Use a mobile-first approach when writing CSS, starting with the smallest
widths and working your way up to larger ones.

2. As I go, I'll share my thought processes and best practices that I've discovered.
Feel good? Now let's get going!
Wire framing the design of the webpage
Diagrams of every component of your website's organization are called
wireframes. They can be very basic and only cover the essentials, or they can be
extremely detailed and resemble designs. We’re going to use a very basic
wireframe for our purposes here. The website will be divided into its main
sections, and we will determine how each will appear on desktop, tablet, and
mobile devices. The Header, Hero, Content section, Sidebar, and Footer are the
sections that we will be creating. As you can see, every section—including the
sidebar—basically stacks atop one another in a single, long column. The simplest
method for effectively fitting content onto a small device, such as a mobile phone,
is stacking. Attempting to place the sidebar next to the main content would be
pointless because phones aren't wide enough to accommodate both. Now,
expanding in width, this is how the tablet is laid out: The primary distinction is that
the sidebar can now fit next to the main content section because tablets are wider
than phones. Additionally, every section fills the tablet's entire width.And this is
the desktop arrangement for the largest device: You need to start thinking about

3. how your desktop website will appear on extremely wide monitors. would be more
difficult to read and scan the website content if it were displayed full-width on a
large monitor. Imagine if you had to force your eyes to move from the left to the
right. It would turn away users and is far too much work. Now that we have a clear
idea of how we want the website to look, it's time to get fun and start creating
everything in HTML and CSS!
Constructing the fundamental forms and structures
We will create an HTML element for every wireframe section by working from
our created wireframes. As you can see, every wireframe element now has an
equivalent element in the HTML. Additionally, I added only basic placeholder
text—no actual content.
Add the first few CSS properties
Now that we have some very basic CSS added, we can start to make this layout
look nice! Certain very general styles, such as font styles and border-box settings
for box-sizing, are not displayed. But these are the only styles you should be
concerned about for the purposes of this article.To make it simpler to locate each
element and troubleshoot any odd problems, I like to add borders to my elements.
In addition, I added background colors to correspond with our previous wireframe

4. mockups. Perhaps you've already noticed, but the website resembles the mobile
wireframe in almost every way. By default, everything is piled on top of one
another.
Include a few placeholder sentences
It's a good idea to add some placeholder content after creating your HTML
elements. By doing this, the website will resemble its final version more closer’s
just going to copy and paste some lorem ipsum filler text into each element, so
don't get too fancy. Here is an example of what the Hero element contains: You’ll
see that I included placeholder text in varying lengths for each element to simulate
the appearance of the finished product.
Making the CSS mobile-friendly
Okay, so we've essentially finished creating the mobile layout! Adding consistent
padding to the sides (and top and bottom, if desired) is another way to improve the
way a website appears on a mobile device. This merely provides the user with a
small amount of breathing room. The content would feel confined if there was no
padding and no margin and it would be right up against the screen edge. To
maintain readability, you don't want to add too much space. I've added a global
padding of 20px in this instance, but you can change it to 10px, 15px, or any other
size you think looks best. Now let's add some styles for the tablet view.

5. Laying out a tablet in two columns
The Content and Sidebar elements are arranged side by side in the tablet
wireframe, as can be observed. Similar to a mobile device, everything else is
stacked vertically. To format the Content and Sidebar into two columns, we must
add a few styles. Instead of using CSS grid for this, we'll be using flexbox. The
Content and Sidebar elements will first be wrapped in a parent that we will classify
as "flex-container by altering our HTML. (Using ellipses to indicate extra markup
that isn't very important at this time)We must choose how we want the Sidebar and
Content to function in a two-column layout before we can begin writing our CSS.
There are several distinct. We will activate flexbox when the device width is 640
pixels or more by using a media query. This means that it will stay stacked on
phones with narrower widths. It will change to a flexbox layout when it reaches the
640-pixel threshold. This will guarantee that the Sidebar will always occupy 300
pixels, with the remaining area going to the Content section.
On desktop devices, cap the content width
The wireframes for the tablet and desktop computers bear a striking resemblance.
The content of both is located next to the sidebar. As previously mentioned, the

6. primary distinction for desktop is to set a max-width for the main content. By
doing this, the website will remain readable even on extremely wide monitors.CSS
helper classes since we'll probably need these styles for a number of different
elements; let's make an easily reusable helper class. We’ll update our CSS with the
following new class and related styles: This will center the element on widths
greater than 1200px and set its max-width to 1200px (converted into rem
units).Since we wish to restrict the width of the Content and Sidebar containers, we
will add the wrapper class to the flex-container wrapper in the HTML.
To sum up
That's it—we created a straightforward responsive layout that works well on
desktop, tablet, and mobile devices! You can view a demo of the website here if
you'd like to see it in use. Additionally, all of the project's code is available for
download on my GitHub page. Note: Gulp and Sass are used in this project. See
my Easy Gulp Tutorial here if you need assistance installing Gulp. I’m grateful
you read! Please share your thoughts about this tutorial in the comments section
below.
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