Layout using CSS

Using multiple classes In the head:.important{font-style:italic;}.title{color:red;} In the body: Here's a type of paragraph that is intended to be displayed in italic.

The goal

Part 1: Layout

The concept Use tags to structure the blocks of the page. (content) Define a style for tags to achieve the desired output. (presentation)

1. Basic properties width (default is 100%) padding (ex: padding: 10px;) background (ex: background: #ffffff;) etc

2. Floating elements Enables blocks to be aligned Property: – float: left; – float: right; – float: none;

2. Floating elements, example Three divs in a page, with following style: div.title{ float:left; border:1px solid gray; padding:10px; } Output: layoutb.html

2. Floating elements, example Three divs in a page, with following style: div.title{ width:200px; float:left; border:1px solid gray; padding:10px; } Output: layoutc.html

3. Positioning Elements can be positioned at any coordinates in the page Property: – position: static; – position: relative; – position: absolute;

Positioning example Three divs in a page, with following style: div.title{ width:200px; position: absolute; top: [100,200,300]px; left: [100,200,300]px; border:1px solid gray; padding:10px; } Output: layoutd.html

1. no layout Page Title This is the first block. This is still the first block. This is the second block. layout1.html

Output

2. Three sections (1) Page Title...

2. Three sections (2)... This is the first block This is still the first block....

2. Three sections (3)... This is the second block.

Output

2. Three “ typed ” sections (1) Page Title...

2. Three sections (2)... This is the first block This is still the first block....

2. Three sections (3)... This is the second block.

Output

3. Writing a style (1) div.title{ border:1px solid gray; padding:10px; }...

3. Writing a style (2)... div.part1{ border:1px solid gray; padding:10px; }...

3. Writing a style (3)... div.part2{ border:1px solid gray; padding:10px; } layout2.html

Output

4. Two column layout v1 - right column has variable width

4. Two column layout v1

4. Two column layout v1 (1) div.title{ border:1px solid gray; padding:10px; }...

4. Two column layout v1 (2)... div.part1{ float: left; width:200px; border:1px solid gray; padding:10px; }...

4. Two column layout v1 (3)... div.part2{ margin-left:222px; border:1px solid gray; padding:10px; }

Output As required Right column has variable width layout2col1.html

5. Two column layout v2 – left column has variable size

5. Two column layout v2

5. Two column layout v2 (1) div.title{ border:1px solid gray; padding:10px; }...

5. Two column layout v2 (2)... div.part1{ margin-right:222px; border:1px solid gray; padding:10px; }...

5. Two column layout v2 (3)... div.part2{ float:right; width:200px; border:1px solid gray; padding:10px; }

Output As required Left column has variable width In Body of document, part1 and part2 have been swapped, otherwise doesn't work At home, try to swap them back and see what happens... There's a way to make the layout work without swapping. See three column example further on... layout2col2.html

6. Three column layout v1 – Right column has variable width

6. Three column layout v1

6. Change in the document body... layout3col1.html

6. Three column layout v1 (1)... div.part1{ float: left; width:200px; border:1px solid gray; padding:10px; }...

6. Three column layout v1 (2)... div.part3{ float: left; width:200px; border:1px solid gray; padding:10px; }...

6. Two column layout v1 (3)... div.part2{ margin-left:444px; border:1px solid gray; padding:10px; }

8. Three column layout v3 – All three columns have variable widths

8. Three column layout v3

8. Three column layout v3 (1)... div.part1 { float: left; width:20%; border:1px solid gray; }... layout3col3.html

8. Three column layout v3 (2)... div.part3 { float:left; width:58%; border:1px solid gray; }...

8. Three column layout v3 (3)... div.part2 { float:left; width:20%; background:#ffffff; border:1px solid gray; }