What is a period character

Question

confused

Answer 1

A period is a dot (.).

To apply a css rule to all elements of class myclass:

.myclass {
property: value;
}

Answer 2

period (i.e. dot) is prefixed to class name as # is prefixed to id name

Answer 3

period (.) indicates class and # indicates Id properties. if you want to apply a style by using class need use like . followed by class name.