Tutorial Remove Margins for First/Last Elements
It can sometimes be desirable to remove the top or left margin from the first element in a container. Likewise, the right or bottom margin f...

https://iskablogs.blogspot.com/2014/03/tutorial-remove-margins-for-firstlast.html
It can sometimes be desirable to remove the top or left margin from the first element in a container. Likewise, the right or bottom margin from the last element in a container. You can do this by manually applying classes to the HTML:
.first { margin-top: 0 !important; margin-left: 0 !important; }
.last { margin-bottom: 0 !important; margin-right: 0 !important; }
The "top"/"bottom" zeroing being
.first { margin-top: 0 !important; margin-left: 0 !important; }
.last { margin-bottom: 0 !important; margin-right: 0 !important; }
The "top"/"bottom" zeroing being