title: Hamburger menu is not visible on safari mobile
body: <p>I have a problem with my site displaying on Safari on iPhone.</p>
  
  <p>It works fine on Chrome and Firefox on mobile screens. 
  On Safari the div with menu hamburger disappears.</p>
  
  <p>Look at the screenshots below:</p>
  
  <p>The site on Chrome/Firefox:</p>
  
  <p><a href="https://i.stack.imgur.com/DRl9O.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/DRl9O.png" alt="enter image description here"></a></p>
  
  <p>The site on Safari:</p>
  
  <p><a href="https://i.stack.imgur.com/mELEX.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/mELEX.png" alt="enter image description here"></a></p>
  
  <p>Do you have any idea why it breaks on Safari? I would be very grateful for any tips.</p>
  
  <p>Here is the link to the site: <a href="https://sylwiavv.github.io/blood-donation-landing-page-starter-master" rel="nofollow noreferrer">https://sylwiavv.github.io/blood-donation-landing-page-starter-master</a></p>
  
  <p>Here is the link to the source code: <a href="https://github.com/sylwiavv/blood-donation-landing-page-starter-master" rel="nofollow noreferrer">https://github.com/sylwiavv/blood-donation-landing-page-starter-master</a></p>
  
  <p>Thanks!</p>