[Try it Β»](#)
### Example Explanation
The .dropdown class is used to specify a dropdown menu.
We can use a button or link to open the dropdown menu, the button or link needs to add .dropdown-toggle and data-toggle="dropdown" attributes.
Add the .dropdown-menu class to the
element to set the actual dropdown menu, then add the .dropdown-item class to the dropdown menu options.
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## Dividers in Dropdown Menu
The .dropdown-divider class is used to create a horizontal divider in a dropdown menu:
## Example
[Try it Β»](#)
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## Headers in Dropdown Menu
The .dropdown-header class is used to add headers in a dropdown menu:
## Example
[Try it Β»](#)
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## Active and Disabled Items in Dropdown Menu
The .active class will highlight the dropdown option (add blue background).
To disable a dropdown option, you can use the .disabled class.
## Example
Regular ItemActive ItemDisabled Item
[Try it Β»](#)
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## Dropdown Menu Positioning
If we want to right-align the dropdown menu, we can add .dropend or .dropstart classes after the .dropdown class on the element.
.dropend is right-aligned, .dropstart is left-aligned.
## Example
[Try it Β»](#)
Vertical button group with dropdown menu:
## Example
Header 1
...
...
[Try it Β»](#)
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## Dropdown Menu Direction
The default direction for dropdown menu to open is downward, but we can also set different directions.
### Specify Dropdown Menu Opens to the Right
If you want the dropdown menu to open to the bottom right, you can add the .dropdown-menu-end class on the div element:
## Example
[Try it Β»](#)
### Specify Dropup Menu
If you want the menu to open upward, you can add the "dropup" class on the div element:
## Example
[Try it Β»](#)
### Specify Dropdown Menu Opens to the Left
If you want the dropdown menu to open upward, you can add the dropstart class on the div element:
## Example
Add some content to test the effect of opening to the left.
[Try it Β»](#)
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## Dropdown Menu Text Items
The .dropdown-item-text class can set text items in the dropdown menu:
## Example
[Try it Β»](#)
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## Dropdown Menu in Button Group
We can add dropdown menus in buttons:
## Example
<button type="button"class="
YouTip