If multiple CSS classes share identical attributes, it may be more efficient to remove those common attributes and add them to a new class. While this may result in more classes applied to HTML elements, making changes will be far more simple and efficient. Details below...
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0:00 - Introduction
Overview of HTML and CSS in demo file.
0:42 - Condensing common CSS into single class
Streamlining code.
2:59 - Class order
In CSS, class order is important. If multiple classes applied to an element describe the same attribute, the attribute described by the last applied class will prevail.