CSS - Practice & Flexbox

Leon Noel

#100Devs

"In my memory, I can hear Chopin's nocturnes playing in the background
A slow train wreck, you'll close your eyes but forever hear the sound
And boy, it's tough 'Cause that's the sound of people falling out of love"

Agenda

Questions?
Review - Network Reminder
Review - CSS Basics
Practice - Box Model
Review - Responsive Basics
Practice - EM / REM
Practice - Media Queries
Build - Using Flexbox
Homework - Layouts

Questions

About last class or life

Checking In

Like and Retweet the Tweet

!checkin

Friends (Almost Done)?

Missed Out:

https://forms.gle/KuTBcouadvaJtUVz6

Submitting Work

Nothing due today!

Please keep putting work into those layouts!

Homework

Networking

1 Individuals Already In Tech

Push? 1 Coffee Chat

Stranger > Acquaintance > Friend > Referral > Coworker

USE THE SHEET!

Networking Google Sheet

Coding Challenges

Daily - Starting After Thursday

Paid Client

Due by Mar. 29th

I started my first job as a Software Engineer on Feb 1st :))) So I’m two weeks in, and yeah, doesn’t feel real, but the dream as a reality is slowly starting to sink in…
It seems silly to put it this way, but it really feels like a prize (a HARD WON prize!), and so if I could “dedicate” this celebration it would be to all of 100Devs; especially those folks feeling your first struggles with The Trough; and ESPECIALLY those folks who have been in that Trough for some time. I really really really wasn’t sure I’d make it through—so many points where I doubted if I had accomplished anything at all.

I wish I could express how “un-ready” I felt, even after more than one official offer. I wish I could tell you how many times I got myself GOT along the way! With Imposter Syndrome! With networking anxiety (networking got me this job)! Slipping on my Anki (using it now on the job)! I wish I could share the depths, the level I felt GOT…because I want to share this view from the other side I’m sending all of my very best thoughts, wishes, and encouragement to the folks who feel the farthest away from the light: we go GET

You’re gonna need a crew for those boats and logs though. LISTEN TO LEON, help others, ask for help (can be hard to learn how to do!). I was helped by so many people, would never have made it without the community Especially my teams (Automagics! Project Team! ) I’ve thanked you, but I can’t thank you enough - Rel.Speedwagon

Hey all, I'm really excited to share that I accepted an offer from Amazon! I'll be starting as a Front End Engineer with Amazon Robotics in March!

Huge thanks to @Dabolical (James) for your encouragement and support, and to @Leon for giving me the tools and strategies for success (PREP/CAR were gold!), as well as the confidence to use them and go get! I am also extremely grateful for everyone here - I am honored to be part of such supportive and uplifting community. Thank you for letting me lurk, ask questions, and give support and advice when I'm able!

-Jeffn12
https://discord.com/channels/735923219315425401/735936014832369687/942824704333467758

Just because...

The Golden Rule

SEPERATION OF CONCERNS

HTML = Content / Structure
CSS = Style
JS = Behavior / Interaction

Progressive Enhancement

According to the United States Department of Commerce, about 22 million Americans--roughly 35% of the nation's rural residents--lack access to broadband.

(2017)

https://1mb.club

CSS

Where does CSS go?

Inline
In the head
In a separate file

CSS BREAK DOWN

p{
  color: red;
  font-weight: bold;
}

What is this?

p{
  color: red;
  font-weight: bold;
}
p{
  color: blue;
}

CSS is read top to bottom

What comes below, can override what came above

This is called the Cascade

Selecting By Relationship

section > p {
  color: red;
}

To select an element that is the direct descendent of another element use

parent > child

<section>
  <p>Hello, Twitch!</p>
</section>

Selecting By Relationship

section p {
  color: red;
}

To select an element that is inside of another element without being directly descended use parent element

parent child

<section>
  <article>
    <p>Hello, Twitch!</p>
  </article>
</section>

Selecting By Relationship

p + p {
  color: red;
}

To select an element that is the next sibling use

previous sibling + adjacent sibling

<section>
  <p>Hello, Twitch!</p>
  <p>Hello, Youtube!</p>
</section>

Selecting By Relationship

p ~ p {
  color: red;
}

To select an element that is a general sibling

previous sibling ~ general sibling

<section>
  <p>Hello, Twitch!</p>
  <p>Hello, Youtube!</p>
  <span>CCCOMBO BREAKER</span>
  <p>Hello, Tiktok!</p>
</section>

IDs & Classes

IDs

#zebra {
  color: red;
}

IDs are used for selecting distinct elements

Only one id with the same value per document

#idName

<section>
  <p>Hello, Twitch!</p>
  <p id="zebra">Hello, Youtube!</p>
</section>

Classes

.bob {
  color: red;
}

Classes are for selecting multiple elements

Multiple with same value allowed per document

.className

<section>
  <p class="robot">Hello, Twitch!</p>
  <p id="zebra" class="bob">Hello, Youtube!</p>
  <p class="bob">Goodbye, Mixer!</p>
</section>

Specificity

#pizza span.gone {
  color: red;
}

<section id="pizza">
  <p class="jumanjiOriginalMovie">Hello, Twitch!</p>
  <p id="car" class="hello">Hello, Youtube!</p>
  <span style="color:red;" class="gone">Mixer!</span>
</section>

Specificity

#dietCoke p.robot.unicorn + .bob {
  color: red !important;
}

<section id="dietCoke">
  <p class="robot unicorn">Hello, Twitch!</p>
  <p id="zebra" class="bob dominosPizza">Hello, Youtube!</p>
  <p class="bob">Goodbye, Mixer!</p>
</section>

The Box Model

By Matthias Apsel

Let's Code

Box Model Practice

Responsive Websites

Fixed Vs. Responsive

UPS.com Wayback Machine

Boston.com

vs.

Fluid

Elastic

Content Decisions

What makes a site responsive?

Fluid

Everything as a percentage

Elastic

EMs & REM

html{
  font-size: 62.5%;
}
section{
  font-size: 20px;
}

p{
  font-size: 1em  
}

vs.

p{
  font-size: 1rem;
}

<section>
  <p>Spam dominos in chat</p>
</section>

Font size of the parent, in the case of typographical properties like font-size, and font size of the element itself, in the case of other properties like width.

- mdn

Let's Code

Em/Rem Practice

Content Decisions

How do we make content decisions?

Media Queries

@media all and (max-width: 600px) {
    h1 {
        color: blue;
    }
}

Let's Code

Media Query Practice

Important Addition To The Template


<meta name="viewport" content="width=device-width, initial-scale=1">

Time For Some

Layouts

not that kind...

🚨 Let's Talk About Floats 🚨

FLEXBOX

🚨 WARNING 🚨

Let's Write BADD CODE

With Flexbox

Layout 1

Layout 2

Layout 3

Homework

Do: Code Homework Layout Photos - HTML & CSS

Read: Go Deep On Things That Don't Make Sense

#100Devs - CSS Review & A Little Flexbox

By Leon Noel

#100Devs - CSS Review & A Little Flexbox

Class 11 of our Free Web Dev Bootcamp for folx affected by the pandemic. Join live T/Th 6:30pm ET leonnoel.com/twitch and ask questions here: leonnoel.com/discord

3,461

CSS - Practice & Flexbox

Leon Noel

#100Devs

Agenda

Questions?

Review - Network Reminder

Review - CSS Basics

Practice - Box Model

Review - Responsive Basics

Practice - EM / REM

Practice - Media Queries

Build - Using Flexbox

Homework - Layouts

Questions

About last class or life

Checking In

Like and Retweet the Tweet

!checkin

Friends (Almost Done)?

Missed Out:

Submitting Work

Nothing due today!

Please keep putting work into those layouts!

Homework

Networking

1 Individuals Already In Tech

Push? 1 Coffee Chat

Stranger > Acquaintance > Friend > Referral > Coworker

USE THE SHEET!

Coding Challenges

Daily - Starting After Thursday

Paid Client

Just because...

The Golden Rule

SEPERATION OF CONCERNS

HTML = Content / Structure

CSS = Style

JS = Behavior / Interaction

Progressive Enhancement

CSS

Where does CSS go?

Inline

In the head

In a separate file

CSS BREAK DOWN

What is this?

CSS is read top to bottom

This is called the Cascade

Selecting By Relationship

To select an element that is the direct descendent of another element use

parent > child

Selecting By Relationship

To select an element that is inside of another element without being directly descended use parent element

parent child

Selecting By Relationship

To select an element that is the next sibling use

previous sibling + adjacent sibling

Selecting By Relationship

To select an element that is a general sibling

previous sibling ~ general sibling

IDs & Classes

IDs

IDs are used for selecting distinct elements

#idName

Classes

Classes are for selecting multiple elements

.className

Specificity

Specificity

The Box Model

Let's Code

Box Model Practice

Responsive Websites

Fixed Vs. Responsive

Boston.com

Fluid

Elastic

Content Decisions

What makes a site responsive?

Fluid