Note: it is recommended to have some basic knowledge of HTML in order to use this feature.
To use this feature, open the Selector Precision from the Step Editor:
The Class Selector is part of Elements Attributes, therefore remember to enable both Element Attributes and Class Selector in order to be able to use it.
The Class Selector can be useful when the target element belongs to more than one class. In cases like this, thanks to Class Selector, you can choose which classes to use and which classes to avoid.
This feature can be useful because some classes may constantly change (i.e. they are dynamic classes) and it is better to deselect them and not rely on them. Otherwise, your target element may not be found.
To see more details on how to fine-tune the element detection, please check this Article.