PICTURES (Bootstrap Image Shapes)
Rounded Corners
The .img-rounded class adds rounded corners to an image (IE8 does not support rounded corners):
Example
<div class=“container”>
<h2>Rounded Corners</h2>
<img src=“img/cinqueterre.jpg” class=“img-rounded” alt=“Cinque Terre” width=“304” height=“236”>
</div>
Circle
The .img-circle class shapes the image to a circle (IE8 does not support rounded corners):
Example
<div class=“container”>
<h2>Rounded Corners</h2>
<img src=“img/cinqueterre.jpg” class=“ img-circle “ alt=“Cinque Terre” width=“304” height=“236”>
</div>
Thumbnail
The .img-thumbnail class shapes the image to a thumbnail:
Example
<div class=“container”>
<h2>Rounded Corners</h2>
<img src=“img/cinqueterre.jpg” class=“ img- thumbnail “ alt=“Cinque Terre” width=“304” height=“236”>
</div>
Responsive Images
Images come in all sizes. So do screens. Responsive images automatically adjust to fit the size of the screen.
Create responsive images by adding an .img-responsive class to the <img> tag. The image will then scale nicely to the parent element.
The .img-responsive class applies display: block; and max-width: 100%; and height: auto; to the image:
Example
<img class=”img-responsive” src=”img_chania.jpg” alt=”Chania”>
Responsive Embeds
Also let videos or slideshows scale properly on any device.
Classes can be applied directly to <iframe>, <embed>, <video>, and <object> elements.
The following example creates a responsive video by adding an .embed-responsive-item class to an <iframe> tag (the video will then scale nicely to the parent element). The containing <div> defines the aspect ratio of the video:
Example
<div class=”embed-responsive embed-responsive-16by9″>
<iframe class=”embed-responsive-item” src=”…”></iframe>
</div>
What is aspect ratio?
The aspect ratio of an image describes the proportional relationship between its width and its height. Two common video aspect ratios are 4:3 (the universal video format of the 20th century), and 16:9 (universal for HD television and European digital television).
You can choose between two aspect ratio classes:
<!– 16:9 aspect ratio –>
<div class=”embed-responsive embed-responsive-16by9″>
<iframe class=”embed-responsive-item” src=”…”></iframe>
</div>
<!– 4:3 aspect ratio –>
<div class=”embed-responsive embed-responsive-4by3″>
<iframe class=”embed-responsive-item” src=”…”></iframe>
</div>
For incase for any confusion, here is video to help you through diferrent image shapes and sizes in bootstrap
Bootstrap Buttons
Bootstrap provides different styles of bottons:
Button Styles
To achieve the button styles above, Bootstrap has the following classes:
.btn.btn-default.btn-primary.btn-success.btn-info.btn-warning.btn-danger.btn-link
The following example shows the code for the different button styles:
Example
<button type=”button” class=”btn”>Basic</button>
<button type=”button” class=”btn btn-default”>Default</button>
<button type=”button” class=”btn btn-primary”>Primary</button>
<button type=”button” class=”btn btn-success”>Success</button>
<button type=”button” class=”btn btn-info”>Info</button>
<button type=”button” class=”btn btn-warning”>Warning</button>
<button type=”button” class=”btn btn-danger”>Danger</button>
<button type=”button” class=”btn btn-link”>Link</button>
The button classes can be used on an <a>, <button>, or <input> element:
Example
<a href=”#” class=”btn btn-info” role=”button”>Link Button</a>
<button type=”button” class=”btn btn-info”>Button</button>
<input type=”button” class=”btn btn-info” value=”Input Button”>
<input type=”submit” class=”btn btn-info” value=”Submit Button”>
Button Sizes
Bootstrap provides four button sizes:
Large Medium Small XSmall
The classes that define the different sizes are:
.btn-lg.btn-md.btn-sm.btn-xs
The following example shows the code for different button sizes:
Example
<button type=”button” class=”btn btn-primary btn-lg”>Large</button>
<button type=”button” class=”btn btn-primary btn-md”>Medium</button>
<button type=”button” class=”btn btn-primary btn-sm”>Small</button>
<button type=”button” class=”btn btn-primary btn-xs”>XSmall</button>
Block Level Buttons
A block level button spans the entire width of the parent element.
Button 1Button 2
Add class .btn-block to create a block level button:
Example
<button type=”button” class=”btn btn-primary btn-block”>Button 1</button>
Active/Disabled Buttons
A button can be set to an active (appear pressed) or a disabled (unclickable) state:
Active Primary Disabled Primary
The class .active makes a button appear pressed, and the class .disabled makes a button unclickable:
Example
<button type=”button” class=”btn btn-primary active”>Active Primary</button>
<button type=”button” class=”btn btn-primary disabled”>Disabled Primary</button>
