In bootstrap, dropdowns are created using the class=”dropdown”. What we will do is create a button and then convert the button into a dropdown. As already stated in the last few tutorials, buttons can be created using the <button> tag. But in this button, we want to create a dropdown, so we will add the class=”btn dropdown-toggle” and data-toggle=”dropdown”.
Basically, it would look something like this.
<button class=”btn btn-default dropdown-toggle” type=”button” data-toggle=”dropdown”> My Dropdown </button>
Note: data- toggle attribute has been replaced with data-bs-toggle in Bootstrap. So, to run the below code with Bootstrap 5 makes sure to replace data-toggle with data-bs-toggle.
Now we want to convert this button into a dropdown. So, we’ll create an unordered list using the <ul> tag having class=”dropdown-menu” and add items using the <li> tag.
You can make your dropdown better by using classes in the <li> tag. To add a header in a dropdown add class=”dropdown-header”, to add a divider between items, use class=”divider” and to disable an item in the list, use class=”disabled”.
To create a tabbed navigation menu, we need to make an unordered list using the <ul> tag and add class=”nav nav-tabs”. Now we can add our tabs using the <li> tag. Remember to assign one tab with class=”active” to view it as the default active tab. Now, we need to write the content of each tab using the class=”tab-pane” within the class=” tab-content”. Note that you must assign ids to the respective tab-pane. Adding the class=”fade” adds a fading effect when the tabs are switched.
You can change the look and feel of the tabs by changing the class=”navbar-nav” to “nav-pills” or “nav-stacked” and if you want your tabs to cover the whole screen then, try adding the class=”nav-justified” Similar to Dropdowns, we can disable any tab using class=”disabled”.
Note: Be careful during the use of nav-bar it will change its size depending on the screen size.
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