Hi,

For your kind information the class .pull-right is removed in Bootstrap 4.

The class .pull-right is only available in Bootstrap 4. If you want to float a button in right then you can use .float-right class in Bootstrap 4.

Following is simple example code for aligning button to right in Bootstrap version 4:

<button type="button" class="btn float-right">Button Right Align</button>

We have discussed this in another thread on our website. You should check following thread to view running example code:

Bootstrap 4 button align right

Bootstrap 4 provides following supported classes for aligning the components:

Here are all the support classes;

• .float-left
• .float-right
• .float-none
• .float-sm-left
• .float-sm-right
• .float-sm-none
• .float-md-left
• .float-md-right
• .float-md-none
• .float-lg-left
• .float-lg-right
• .float-lg-none
• .float-xl-left
• .float-xl-right
• .float-xl-none

You can use any of these classes to correctly align your div to meet your design requirements.

Thanks