< html > + css
how can I craft webpages

Who am I
Dimitris Tsironis
Founder at Geembo
Javascript Developer at Bugsense
Ingredients:
50% code / 50% design

First, a story
from good old days

What is HTML
Hyper
Text
Markup
Language
It’s just text with superpowers!
It’s what your browser is made for.

Basic elements
HTML consists of elements
Heading, paragraphs, articles, anchor links
Images, video, audio
Metadata, scripts and stylesheets

How it works
HTML needs this to work
a text-based file
doctype, html, head & body tags
some actual content
and you’re good to go...

HTML elements
Heading 1 - <h1>This is a title</h1>
Paragraph - <p>This is a paragraph</p>
Anchor link - <a href=”#”>This is a link</a>
div - <div>This is a general element</div>
img - <img src=”/path/to/logo.png” />
input - <input type=”text” name=”name” />

Classes & IDs
HTML has classes and IDs to make elements
easier to distinguish
Classes are more generic, like a box, button etc.
IDs are very specific and must be used with caution

Basic example
HTML is as simple as ABC

Basic example
…which actually is

Box model
HTML elements always behave like boxes
the most important thing about HTML
it will help you get to the next level
required to make a solid structure
required to debug HTML

Box model
Here’s the previous example. See the boxes?

Box model
Here’s the previous example. See the boxes?

disappointed.
this page looks bad.

What is CSS
Cascading
Style
Seets
It’s what makes your HTML beautiful.

Basic CSS rules
CSS consists of rules, like this one
h1 {color: black; text-align:center;}
selector declaration #1 declaration #2

Basic CSS rules
Some details about CSS rules
selector defines what HTML element to target
declaration have a property and a value
declarations in a block, defined by brackets{...}

CSS selectors
CSS selectors are used to target specific HTML
elements with rules
h1 {...} <h1>This is a title</h1>
p {...} <p>This is a paragraph</p>
.active{...} <div class=”active”></div>
.active{...} <img class=”active”></img>
#signup{...} <button id=”signup”></button>

IT’S A
TRAP!

Never, ever, ever, ever
use IDs in your CSS!
Seriously, don’t do this. It’s messy.
You’ll end with super strong selectors that
you can’t override.

Tools you’ll need
A crappy computer
Nothing fancy, you probably already have one
A competent text-editor
Sublime Text 2 - highly recommended text-editor
Developer’s tools
Firebug is recommended, for Firefox & Chrome

Tools you’ll need
Google search
Remember, Google has the answer to your problem
Wamp Server
Very basic web server for your PC

Resources to read
Mozilla Developer Network
The best web library out there
http://developer.mozilla.org/en-US/
CSS Tricks
Your CSS buddy - you can find anything here
http://www.css-tricks.com/

Resources to read
Github
The biggest source code hosting site
http://github.com/edu
Codecademy
You can learn code by doing
http://www.codecademy.com

Thank you!
@tsironakos
@geembohq
tsironis.dimitris@gmail.com