wget -P . -mpck --html-extension -e robots=off --wait 0.5 <URL> To understand the flags, you can check man wget of course, but some explanations follow here:
-P - Tell where to store the site -m - Create a mirror -p - Download all the required files (.css, .js) needed to properly render the page -c - Continue getting partially downloaded files -k - Convert links to enable local viewing –html-extension - Add the .