Gulp live reload not working, what should I do?

Question

css

Somewhere I saw that it is possible to make the page in the browser automatically updated, later I found out that we are talking about gulp livereload. Installed node.js, updated npm entered all commands from the gulp site and npm install --save-dev gulp-livereload.
Then I ended up with this gulpfile.js:
var
gulp = require("gulp"),
livereload = require("gulp-livereload");
gulp.task("reload-css", function()
{
gulp.src('/src/*.css')
.pipe(livereload());
});
gulp.task("default", function()
{
livereload.listen(); installed browser extension. Then everything goes wrong:
gulp.watch('./src/*.css', gulp.series('reload-css'));
});
when executing the gulp command, everything is fine, when the css file changes, it says "Starting 'reload-css'..." , but nothing happens on the page in the browser. Help the fool