Can't see menu on smartphones

Hi guys,

I love the theme Sydney, it’s great. But I have a problem: when I want to see the website on my smartphone, the menu disappaer. You can’t see it, only if you put your finger into the white space below the title, the menu appear. But you must know this. If not, you can’t open the site.
Can you help me please?
Zhanks a lot
Angela

You probably have a white mobile “hamburger” menu icon on a white background. You can change the color of the menu icon color using code like this:

.btn-menu{
  color: #5e5e5e;
}

Go to Appearance > Customize > Additional CSS and past the code in the box. This particular color is dark gray. You can replace the color code with whatever color works with your design.