You edit HTML files? You want to avoid the annoying Save/Switch-to-Browser/Refresh-Browser keystrokes? Then better use ImpatientMode! To create a live connection to your browser just download ImpatientMode (e.g. from Melpa) and enter M-x impatient-mode. Then you will have to get the simple-httpd.el package and run M-x httpd-start. Now you should switch to your browser and go to the ImpatientMode site of your running httpd-webserver. By default it is http://localhost:8080/imp. You will see the files running ImpatientMode, so just click it and… be happy with your live connection!