Hello folks! welcome back to a new edition of our tutorial on Bootstrap. In this tutorial, we will be discussing about the Bootstrap dropdown menus.
Dropdown Menus
Dropdown menus are toggleable, contextual menus used to display links in a list format. These menus can be made interactive with the dropdown plugin. To use dropdown, just wrap the dropdown menu within .dropdown class.
Example
The following example below demonstrates a basic dropdown menu -
<div class = "dropdown"> <button type = "button" class = "btn dropdown-toggle" id = "dropdownMenu1" data-toggle = "dropdown"> Topics <span class = "caret"></span> </button> <ul class = "dropdown-menu" role = "menu" aria-labelledby = "dropdownMenu1"> <li role = "presentation"> <a role = "menuitem" tabindex = "-1" href = "#">Java</a> </li> <li role = "presentation"> <a role = "menuitem" tabindex = "-1" href = "#">Data Mining</a> </li> <li role = "presentation"> <a role = "menuitem" tabindex = "-1" href = "#"> Data Communication/Networking </a> </li> <li role = "presentation" class = "divider"></li> <li role = "presentation"> <a role = "menuitem" tabindex = "-1" href = "#">Separated link</a> </li> </ul> </div>
Output
When the above example is executed, it will produce the following result -
READ: Bootstrap | Glyphicons
Options
Alignment
Align the dropdown menu to right by adding the .pull-right class to .dropdown-menu.
Example
The following example below demonstrates this -
<div class = "dropdown"> <button type = "button" class = "btn dropdown-toggle" id = "dropdownMenu1" data-toggle = "dropdown"> Topics <span class = "caret"></span> </button> <ul class = "dropdown-menu pull-right" role = "menu" aria-labelledby = "dropdownMenu1"> <li role = "presentation"> <a role = "menuitem" tabindex = "-1" href = "#">Java</a> </li> <li role = "presentation"> <a role = "menuitem" tabindex = "-1" href = "#">Data Mining</a> </li> <li role = "presentation"> <a role = "menuitem" tabindex = "-1" href = "#"> Data Communication/Networking </a> </li> <li role = "presentation" class = "divider"></li> <li role = "presentation"> <a role = "menuitem" tabindex = "-1" href = "#">Separated link</a> </li> </ul> </div>
Output
When the above example is executed, it will produce the following result -
Headers
You can add a header to the label sections of actions in any dropdown menu by using the .dropdown-header class.
Example
The following below is a simple example -
<div class = "dropdown"> <button type = "button" class = "btn dropdown-toggle" id = "dropdownMenu1" data-toggle = "dropdown"> Topics <span class = "caret"></span> </button> <ul class = "dropdown-menu" role = "menu" aria-labelledby = "dropdownMenu1"> <li role = "presentation" class = "dropdown-header">Dropdown header</li> <li role = "presentation" > <a role = "menuitem" tabindex = "-1" href = "#">Java</a> </li> <li role = "presentation"> <a role = "menuitem" tabindex = "-1" href = "#">Data Mining</a> </li> <li role = "presentation"> <a role = "menuitem" tabindex = "-1" href = "#"> Data Communication/Networking </a> </li> <li role = "presentation" class = "divider"></li> <li role = "presentation" class = "dropdown-header">Dropdown header</li> <li role = "presentation"> <a role = "menuitem" tabindex = "-1" href = "#">Separated link</a> </li> </ul> </div>
Output
When the above example is executed, it will produce the following result -
Alright guys! This is where we are going to be rounding up for this tutorial. In our next tutorial guide, we are going to be studying about the Bootstrap Button Groups.
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