Mobile friendly and mobile menu

I use Sydney theme and I think it is really easy to use and best for design.
But I have a problem, my website is not mobile friendly (fordtrucks.rs) and I doesn’t have menu icon on my mobile version of the site.
I tried almost everything and I didn’t get the solution.
Problems are: Logo is too small, Missing menu, Header text appear in few columns, Images in pages are too big or they are over the rows in pages.
Please help me

Hello there,

The custom text which overlays the video header might be causing you this trouble. To verify it yourself, try temporarily removing it; and run your test.

Regards,
Kharis

Dear Kharis,
I try to remove text from my header. But it is same problem, just without txt.

Hello there,

Please try adding this extra CSS code to Appearance > Customize > Additional CSS from dashboard.

    @media only screen and (min-width: 650px) {

      .sydney-hero-area .slide-inner .text-slider {
        margin-right: 0;
        margin-left: 20px;
        width: 310px;
        float: left; 
      }
      
    }

Regards,
Kharis