Menu

Contact Us Today for a Free Quote.

Full Name

Email Address

Phone

Choose all that apply. CNTRL - Click

Monthly Website Production Volume

Message / Project Notes

Captcha Type what you see below.

captcha

 
 
Home » Web Development » HTML5 » HTML5 Bootstrap Responsive Basics

HTML5 Bootstrap Responsive Basics

HTML5 Bootstrap Responsive

Bootstrap makes use of certain HTML elements and CSS properties that require the use of the HTML5 doctype. Include it at the beginning of all your projects.

  1. <!DOCTYPE html>
  2. <htmllang=“en”>
  3. </html>

Typography and links

Bootstrap sets basic global display, typography, and link styles. Specifically, we:

  • Remove margin on the body
  • Set background-color: white; on the body
  • Use the @baseFontFamily@baseFontSize, and @baseLineHeight attributes as our typographic base
  • Set the global link color via @linkColor and apply link underlines only on :hover

These styles can be found within scaffolding.less.

Reset via Normalize

With Bootstrap 2, the old reset block has been dropped in favor of Normalize.css, a project by Nicolas Gallagher that also powers the HTML5 Boilerplate. While we use much of Normalize within our reset.less, we have removed some elements specifically for Bootstrap.

Live grid example

The default Bootstrap grid system utilizes 12 columns, making for a 940px wide container without responsive features enabled. With the responsive CSS file added, the grid adapts to be 724px and 1170px wide depending on your viewport. Below 767px viewports, the columns become fluid and stack vertically.

1
1
1
1
1
1
1
1
1
2
3
4
4
5
9

Basic grid HTML

For a simple two column layout, create a .row and add the appropriate number of .span* columns. As this is a 12-column grid, each .span* spans a number of those 12 columns, and should always add up to 12 for each row (or the number of columns in the parent).

  1. <divclass=“row”>
  2. <divclass=“span4″></div>
  3. <divclass=“span8″></div>
  4. </div>

Given this example, we have .span4 and .span8, making for 12 total columns and a complete row.

Offsetting columns

Move columns to the right using .offset* classes. Each class increases the left margin of a column by a whole column. For example, .offset4 moves.span4 over four columns.

4
3 offset 2
3 offset 1
3 offset 2
6 offset 3
  1. <divclass=“row”>
  2. <divclass=“span4″></div>
  3. <divclass=“span3 offset2″></div>
  4. </div>

Nesting columns

To nest your content with the default grid, add a new .row and set of .span* columns within an existing .span* column. Nested rows should include a set of columns that add up to the number of columns of its parent.

Level 1 of column

Level 2
Level 2
  1. <divclass=“row”>
  2. <divclass=“span9″>
  3. Level 1 column
  4. <divclass=“row”>
  5. <divclass=“span6″>Level 2</div>
  6. <divclass=“span3″>Level 2</div>
  7. </div>
  8. </div>
  9. </div>

Live fluid grid example

The fluid grid system uses percents instead of pixels for column widths. It has the same responsive capabilities as our fixed grid system, ensuring proper proportions for key screen resolutions and devices.

1
1
1
1
1
1
1
1
1
1
1
1
4
4
4
4
8
6
6
12

Basic fluid grid HTML

Make any row “fluid” by changing .row to .row-fluid. The column classes stay the exact same, making it easy to flip between fixed and fluid grids.

  1. <divclass=“row-fluid”>
  2. <divclass=“span4″></div>
  3. <divclass=“span8″></div>
  4. </div>

Fluid offsetting

Operates the same way as the fixed grid system offsetting: add .offset* to any column to offset by that many columns.

4
4 offset 4
3 offset 3
3 offset 3
6 offset 6
  1. <divclass=“row-fluid”>
  2. <divclass=“span4″></div>
  3. <divclass=“span4 offset2″></div>
  4. </div>

Fluid nesting

Nesting with fluid grids is a bit different: the number of nested columns should not match the parent’s number of columns. Instead, each level of nested columns are reset because each row takes up 100% of the parent column.

Fluid 12

Fluid 6
Fluid 6
  1. <divclass=“row-fluid”>
  2. <divclass=“span12″>
  3. Level 1 of column
  4. <divclass=“row-fluid”>
  5. <divclass=“span6″>Level 2</div>
  6. <divclass=“span6″>Level 2</div>
  7. </div>
  8. </div>
  9. </div>

Fixed layout

Provides a common fixed-width (and optionally responsive) layout with only <div class="container"> required.

  1. <body>
  2. <divclass=“container”>
  3. </div>
  4. </body>

Fluid layout

Create a fluid, two-column page with <div class="container-fluid">—great for applications and docs.

  1. <divclass=“container-fluid”>
  2. <divclass=“row-fluid”>
  3. <divclass=“span2″>
  4. <!–Sidebar content–>
  5. </div>
  6. <divclass=“span10″>
  7. <!–Body content–>
  8. </div>
  9. </div>
  10. </div>

Enabling responsive features

Turn on responsive CSS in your project by including the proper meta tag and additional stylesheet within the <head> of your document. If you’ve compiled Bootstrap from the Customize page, you need only include the meta tag.

  1. <metaname=“viewport”content=“width=device-width, initial-scale=1.0″>
  2. <linkhref=“assets/css/bootstrap-responsive.css”rel=“stylesheet”>

Heads up! Bootstrap doesn’t include responsive features by default at this time as not everything needs to be responsive. Instead of encouraging developers to remove this feature, we figure it best to enable it as needed.

About responsive Bootstrap

Responsive devices
Media queries allow for custom CSS based on a number of conditions—ratios, widths, display type, etc—but usually focuses around min-width and max-width.

  • Modify the width of column in our grid
  • Stack elements instead of float wherever necessary
  • Resize headings and text to be more appropriate for devices

Use media queries responsibly and only as a start to your mobile audiences. For larger projects, do consider dedicated code bases and not layers of media queries.

Supported devices

Bootstrap supports a handful of media queries in a single file to help make your projects more appropriate on different devices and screen resolutions. Here’s what’s included:

Label Layout width Column width Gutter width
Large display 1200px and up 70px 30px
Default 980px and up 60px 20px
Portrait tablets 768px and above 42px 20px
Phones to tablets 767px and below Fluid columns, no fixed widths
Phones 480px and below Fluid columns, no fixed widths
  1. /* Large desktop */
  2. @media(min-width:1200px){}
  3.  
  4. /* Portrait tablet to landscape and desktop */
  5. @media(min-width:768px)and(max-width:979px){}
  6.  
  7. /* Landscape phone to portrait tablet */
  8. @media(max-width:767px){}
  9.  
  10. /* Landscape phones and down */
  11. @media(max-width:480px){}

Responsive utility classes

For faster mobile-friendly development, use these utility classes for showing and hiding content by device. Below is a table of the available classes and their effect on a given media query layout (labeled by device). They can be found in responsive.less.

Class Phones767px and below Tablets979px to 768px DesktopsDefault
.visible-phone Visible
.visible-tablet Visible
.visible-desktop Visible
.hidden-phone Visible Visible
.hidden-tablet Visible Visible
.hidden-desktop Visible Visible

When to use

Use on a limited basis and avoid creating entirely different versions of the same site. Instead, use them to complement each device’s presentation.