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Monday, April 22, 2019

Bootstrap Progress Bars

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Bootstrap Progress Bars
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Basic Progress Bar
A progress bar can be used to show a user how far along he/she is in a process.

Bootstrap provides several types of progress bars.

A default progress bar in Bootstrap looks like this:

70% Complete
To create a default progress bar, add a .progress class to a <div> element:

Example
<div class="progress">
  <div class="progress-bar" role="progressbar" aria-valuenow="70"
  aria-valuemin="0" aria-valuemax="100" style="width:70%">
    <span class="sr-only">70% Complete</span>
  </div>
</div>
»
Note: Progress bars are not supported in Internet Explorer 9 and earlier (because they use CSS3 transitions and animations to achieve some of their effects).

Note: To help improve accessibility for people using screen readers, you should include the aria-* attributes.

Progress Bar With Label
A progress bar with a label looks like this:

70%
Remove the .sr-only class from the progress bar to show a visible percentage:

Example
<div class="progress">
  <div class="progress-bar" role="progressbar" aria-valuenow="70"
  aria-valuemin="0" aria-valuemax="100" style="width:70%">
    70%
  </div>
</div>
»
Colored Progress Bars
Contextual classes are used to provide "meaning through colors".

The contextual classes that can be used with progress bars are:

.progress-bar-success
.progress-bar-info
.progress-bar-warning
.progress-bar-danger
40% Complete (success)
50% Complete (info)
60% Complete (warning)
70% Complete (danger)
The following example shows how to create progress bars with the different contextual classes:

Example
<div class="progress">
  <div class="progress-bar progress-bar-success" role="progressbar" aria-valuenow="40"
  aria-valuemin="0" aria-valuemax="100" style="width:40%">
    40% Complete (success)
  </div>
</div>

<div class="progress">
  <div class="progress-bar progress-bar-info" role="progressbar" aria-valuenow="50"
  aria-valuemin="0" aria-valuemax="100" style="width:50%">
    50% Complete (info)
  </div>
</div>

<div class="progress">
  <div class="progress-bar progress-bar-warning" role="progressbar" aria-valuenow="60"
  aria-valuemin="0" aria-valuemax="100" style="width:60%">
    60% Complete (warning)
  </div>
</div>

<div class="progress">
  <div class="progress-bar progress-bar-danger" role="progressbar" aria-valuenow="70"
  aria-valuemin="0" aria-valuemax="100" style="width:70%">
    70% Complete (danger)
  </div>
</div>
»
Striped Progress Bars
Progress bars can also be striped:

40% Complete (success)
50% Complete (info)
60% Complete (warning)
70% Complete (danger)
Add class .progress-bar-striped to add stripes to the progress bars:

Example
<div class="progress">
  <div class="progress-bar progress-bar-success progress-bar-striped" role="progressbar"
  aria-valuenow="40" aria-valuemin="0" aria-valuemax="100" style="width:40%">
    40% Complete (success)
  </div>
</div>

<div class="progress">
  <div class="progress-bar progress-bar-info progress-bar-striped" role="progressbar"
  aria-valuenow="50" aria-valuemin="0" aria-valuemax="100" style="width:50%">
    50% Complete (info)
  </div>
</div>

<div class="progress">
  <div class="progress-bar progress-bar-warning progress-bar-striped" role="progressbar"
  aria-valuenow="60" aria-valuemin="0" aria-valuemax="100" style="width:60%">
    60% Complete (warning)
  </div>
</div>

<div class="progress">
  <div class="progress-bar progress-bar-danger progress-bar-striped" role="progressbar"
  aria-valuenow="70" aria-valuemin="0" aria-valuemax="100" style="width:70%">
    70% Complete (danger)
  </div>
</div>
»
Animated Progress Bar
Here is an "animated" progress bar:

40%
Add class .active to animate the progress bar:

Example
<div class="progress">
  <div class="progress-bar progress-bar-striped active" role="progressbar"
  aria-valuenow="40" aria-valuemin="0" aria-valuemax="100" style="width:40%">
    40%
  </div>
</div>
»
Stacked Progress Bars
Progress bars can also be stacked:

Free Space Warning Danger
Create a stacked progress bar by placing multiple bars into the same <div class="progress">:

Example
<div class="progress">
  <div class="progress-bar progress-bar-success" role="progressbar" style="width:40%">
    Free Space
  </div>
  <div class="progress-bar progress-bar-warning" role="progressbar" style="width:10%">
    Warning
  </div>
  <div class="progress-bar progress-bar-danger" role="progressbar" style="width:20%">
    Danger
  </div>
</div>
»
Test Yourself with Exercises!
Exercise 1 »  Exercise 2 »  Exercise 3 »  Exercise 4 »


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