CSS Font size

Question

How can I change font size with CSS?

Answer 1

there are 4 different ways:
1-Example:
p {
font-size: 16px;
}
2-Example:
p {
font-size: 22%;
}
3-Example:
p {
font-size: 1.5em;
}
4-Example:
p {
font-size: medium;
}

Answer 2

For example:
font-size: 15px;