HTML

&
CSS



PRESENTER



DON BURKS   
@don_burks   

HEAD INSTRUCTOR
@lighthouse_labs

WE HAVE TWO SHORT LESSONS THIS Evening


LESSON #1

OVERVIEW + HTML



LESSON #2

CSS



LESSON #1

OVERVIEW + HTML





What is coding?

And what does it mean to be a coder?

CODING IN REAL LIFE...


...versus coding in the MOVIES.



Where does HTML come in?

How does it compare to CSS ?


TOO MUCH CSS



choose your flavour





How do we write code?

Why don't we just code in Microsoft Word?





LEt's take a look at brackets

What does HTML look like inside  a code editor?


How does HTML work?

<>


These are called angle brackets

Text inside of angle brackets is an HTML tag.


Everything else is just  text.




<p>This is normal text surrounded by an HTML tag .</p>


A closing tag has a  forward slash.


This whole thing is an HTML element.

Let's pick apart SOME CODE

<header>Don Burks</header>
            
<p>
            
  <em>Bio:</em> Head Instructor of Lighthouse Labs

  <br>

  <em>E-mail:</em> don@lighthouselabs.ca

</p>

<header> : Defines the heading portion of a section.
<p> :  Creates a paragraph of text.
 <em>: Emphasizes text (e.g. italicize it).
<br> : Triggers a new line.



There are many types of HTML elements, including:
<SECTION>, <HEADER>, <STRONG>, <FOOTER>
EACH ELEMENT HAS ITS OWN SPECIFIC ROLE


OK
We've learned about tags and elements.

What's next?

NESTING



Nesting


Place an HTML element inside another HTML element. 

Previously, our <em> tags were inside our <p> tag. 

Shapes how the resulting web page is structured.






Attributes


Attributes give elements superpowers additional information.


Attributes


Attributes are placed inside an element's opening tag.

They are placed after the tag's name.

They are structured as follows:  attribute="value"

ATTRIBUTE EXAMPLE



Here's a normal header element: 

<header>I'm a sentence.</header>

Here's a header element with a title attribute:

<header  title="My Cool Header">I'm a sentence.</header>

SRC Attribute


The  src  attribute is how we get  CAT PICTURES

Used within the  < img > element

<img  src=" http://images.com/ultimate_cute_kitteh.jpg"> 





LESSON #2

css

HTML defines the elements on a webpage
CSS defines the design of those elements. 


Structure: Our house's scaffolding. 

Defining block of content that should go within another block, etc. 


Design: Our house's paint and decor. 

How those blocks should actually look:
what colour they are,  how big they are, etc.


CSS is a two-step process


1. It targets an element on a page.


2. It applies styles ("properties") to it.


Common CSS properties include:

color, font-size, text-align





Hi, my name is George. I'm unemployed and I live with my parents. –George Costanza

NOW LET'S CREATE THE CSS


CSS consists of rules. CSS rules are simple:

                              header  {
                                 color: green;
                              }

Just like with HTML attributes, we simply assign values to properties.

DIVING DEEPER INTO THE CSS


header  { <---- Opening curly bracket.
       text-align: center; <---- We use ":" instead of "=".
       color: green; <---- We don't put the value inside quotes.
}  <---- Closing curly bracket.

em  { <---- We're targeting an element with the ID of "contact".
       font-size: 20; <---- Then we're telling CSS how to style the font-size property.
       color: blue;
}

We place groups of CSS rules one after another.



To assign CSS properties to an HTML element, we must have a way of referencing the element.

Done by using an HTML attribute that assigns it a unique name.  The attribute that does this is called "ID".

Let's add an ID to our sample HTML code.




Alternatively, when we start with a pound-sign, we tell CSS to target elements with a given id:

#bio  {
       font-size: 20;
       color: blue;
}

ID vs class attribute


Use class instead of id when 
you have more than one element

id should be unique to the page
Only use it on one-of-a-kind elements

class should be used more frequently



class attribute


Instead of # symbol, we use a . (period) symbol 

             em.special  {
                 color: blue;
             }

This will target the following element:

             <em  class="special">Text here</em>




What else can you do with css?


CSS3

stylistic control

Gradients
Linear
Radial
Repeating Linear
Repeating Radial

Animations



Fine.

But what about interactivity?

Javascript to the rescue!



deadly when
used in combination
with html5 & css3


Example:

without js we wouldn't have ...


OR

OR





the future of html & css






it's not just for the web 

anymore!



Desktop Apps!


Brackets


Mobile Apps!


Apache Cordova
&
Adobe PhoneGap
    Apache Cordova / Adobe PhoneGap



Everyone
should
learn
to
code

What it takes


1. Curiosity
2. Drive
3. Persistence
4. Enjoyment




What's Next?
where do i go from here?

FREE(ISH) ONLINE TOOLS




The best way to learn this:


tinker


&


Build stuff


WHAT're we doing?



TODAY YOU WILL BUILD A:


NEWSPAPER FRONT PAGE



IT'S NORMAL TO ENCOUNTER BUGS.

Debugging is a natural part of writing code.

Ask your mentors for help! That's why they're here :)

Also: Developers look stuff up ALL the time. #thxgoogle



GET READY TO PAIR UP


We encourage Pair Programming. 

dear attendees,




Thank you!



kind regards,

DON BURKS

UBC BizTech HTML & CSS - March 2016

By Don Burks

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UBC BizTech HTML & CSS - March 2016

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