Thanks a lot. I fixed that alert message. I forgot to remove it before uploading my files to server. You don't need to create any plugin. Also, you don't need t

Thanks a lot. I fixed that alert message. I forgot to remove it before uploading my files to server. You don't need to create any plugin. Also, you don't need to install any plugin by yourself except contact form 7 plugin (a 3rd party plugin). All you need to do is to copy/paste some static HTML in wordpress pages. I'm looking to provide a content import file for this in next version. I was struggling with adjusting the screenshot image size when I used bootstrap responsive features on main site. It was looking ugly and I wasn't having much free time. So, I used the default 960px fixed layout.