Wednesday, 30 September 2015

LO2: Codeacdemy

HTML - HyberText Markup Language - Use to establish a page's stucture. It also lets us add text, links and images to the website.

CSS - this is used to control the design and the layout of the page


HTML elements is used to structure a website


There is the heading element. There are six levels of heading elements from h1 to h6. 


Creating a heading

The h1 element is used to describe the main heading of the page. 
<h1> Heading </h1> - text a user can see

Creating a paragraph <p>
A new article headings are usually followed by paragraphs these are coded as 
<p> paragraph </p> - text a user can see

Creating a link <a>

To create a new link the website code used is
<ahref="http://www.google.com/">Search</a>

First red - Attribute name

Middle Red - Attribute value
Green - Attribute value

Adding an image<img>

To add a image the website code used is 
<imgsrc="logo.png"> 

Red - Attribute value

Green - image address

Creating a list <ul> and <li>

In addition to paragraph and images, content and can be presented as lists. To add a list the website code used is
<ul>
<li>Home</li>
<li>About</li>
</ul>

Making the website works on different browsers<html> and <body>

<!DOCTYPEhtml>
<html>
<body>
<h1>Web Development</h1>
<p>We're learning HTML </p>
</body>
</html>

How to control the appearance of a HTML using CSS
Changing the colour:
h1{
color:pink;
}

How the CSS rule works:
1. The CSS rule starts with a selector. A selector specifies which HTML elements to style. The h1 in the CSS selector selects all h1 HTML elements on the page.
2. Inside the brace {}, a property and its valuedefine what aspect of the h1 elements to style. Setting the color property to red changes the colour of the h1 element to red.

Class Selector:
<div class="Header">
<h2>Heading</h2>
<p>Subtitle</p>
</div>

<p> Hello world </p>

When this Header has been coded blue it turns to the colour requested, however because "Hello World" is outside of the code <div> it remains unstyled

There are 140 colours, these colours can be chosen though tyoing values to change the brightness.:


  • RGB values range from 0 to 255, with 255being the brightest.
  • Hex numbers vary from 00 to ff, with ffbeing the brightest.
How to change the Font 
There are three common fonts that are used which are:
  1. font-family: Arial, Helvetica, sans-serif;
  2. font-family: "Times New Roman", Times, serif;
  3. font-family: "Courier New", Courier, monospace;
However you can uses Google fonts , this is a free collection of over 600 
different fonts.

How to change the font size
Text size can be measured using pixels, ems, or rems.

How to change the background image
.jumbotron {
background-image: url('https://goo.gl/04j7Nn');
}

How to change the border

.jumbotron h1 {
  3px solid #cc0000: ;
}

How to change the padding
.jumbotron h1 {
  padding: 0px;
  border: 3px solid #ffffff;
}
How to change the Margin
.jumbotron h1 {
  margin: 0px;
  border: 3px solid #ffffff;
}




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