WP Theme cross browser compatibility

[supergate]

We try to make our custom WP theme but need to ask you

• How i can test my theme on all IE versions and others different
  browsers versions ?

• Is there a software or plugins to help us to make css style
  compatible cross over all browsers ?

Thanks

[CLGolden]

Hello @supergate.

Once you have your site on the internet (as a test or dev site), you can open it in various browsers on your desktop.

Assuming you are testing various devices as well, you can use whatever devices you own, and ask friends to pull it up on their tablets and smartphones.

You can do some viewport testing via Firebug and Chrome Dev Tools.

There are also platforms that provide this service. BrowserStack is what I use. They give you some free time per month and have paid plans as well.

Considering the ever-increasing number of device viewports and resolutions to test for, developers are always wrestling with this question, and have many different solutions.

What does it mean that you want to test “all” versions of IE. Since it is the most problematic of the browsers, the best practice is to test only as far back as a significant percentage of your audience uses.

I have an old Windows computer that I test on. If you’re in the US, you could find something on CraigsList.

I don’t know of any ‘software or plugin’ to make CSS compatible with all browsers. I don’t see how there could be considering the continuous changes to the standards and technology.