As title is there anything would recommend to replace Dreamweaver for HTML5 / CSS3 etc

I know it does the job but I find of late it is getting more and more resource hungry. Noticed today it has the fan spinning at max on my Intel i7 16GB Ram etc... even when just idle in background.

Any suggestions appreciated.

Although I do everything in code I do like the Split Screen WYSIWYG style editors just for ease of click on a bit visually and it instantly finds the relevant code for me

Tried google but after installing then uninstalling 3 different pieces of crap I though I would see what you lot recommend.