How to enable autocomplete/suggestion in Sublime text?

Question

Sublime Text

Everything worked fine, but today I go in and auto-suggestions in sublime do not work.
That is, as usual:
For example, you write back - the pop-up menu offers many options for quick entry (backgroung, backgroung color, etc.), and there with all the tags, values, etc.
What can be done? Already rummaged the Internet, searched for answers, reinstalled sublime - nothing.

Answer 1

try emmet css snipet plugin