What does # stand for?

# stands for "under HTML, ID= is replaced by # for CSS"

How to abbreviate "under HTML, ID= is replaced by # for CSS"?

"under HTML, ID= is replaced by # for CSS" can be abbreviated as #

What is the meaning of # abbreviation?

The meaning of # abbreviation is "under HTML, ID= is replaced by # for CSS"

What does # mean?

# as abbreviation means "under HTML, ID= is replaced by # for CSS"