I.flux For Mac

Flux for Mac is the latest release of the flagship web design app from The Escapers. Version 6 introduces comprehensive support for Responsive Designs, a better Code Editor than ever before, and cleaner, more usable User Interface. Flux is the professional Web Design app for your Mac. The appcan do anything you throw at it, full HTML5 and CSS support lets you edit your existing sites (over FTP if you want.)
Flux for macOS has first class WYSIWYG design capability, but doesn't sacrifice your ability to Hand Code. The app uses a unique system that can understand your handcoded HTML and CSS, and only changes what it needs to. In addition to a completly reimagined user interface, the app introduces support for Responsive Design. Responsive websites scale to fit different devices, from desktop Mac to iPhone. The toolsupport Bootstrap and Skeleton (your choice). Flux requires Mac OS X El Capitan. We recommended 8GB of RAM or more.
WYSIWYG
The program has an amazing WYSIWYG engine (What You See Is What You Get). In the tool, you don't need to code everything, or even anything, you can drag images onto your page, adjust sizes with the drag handles, even adjust CSS properties such as margins and padding. You can even adjust external CSS properties this way.
CODE
Of course, you want to code too, The app has a rebuilt Code Editor that's better than ever before. Importantly, the tool has no distinction between generated and hand-crafted code, so you can still use the WYSIWYG stuff, even on code you've typed yourself.
REMOTE
The app supports FTP and SFTP, which means you can work directly on the server copy of your site. Remember to keep a backup!
Note: 7 days trial version. Requires 64-bit processor.