Internet Explorer shows my menu wrong

Your horizontal menu is showing vertically in my version of Chrome as well.

From a quick look through, adding the following should fix things for you :

.main-navigation li {
  float: left;
}

Where did you get the theme you are using?

I think I got it from here
https://www.ads-software.com/themes/quark

Have you tried my solution above….?

Where would I put that code?

you said for me to add it but I don’t know where. I tried the stlye.css in the main navigation section and my custom css but neither worked. I thought maybe I was putting in the wrong place.

You also may be able to find support at https://www.ads-software.com/support/theme/quark