Custom Font Won't Show up on Mobile

Hello!

I'm having trouble getting my custom font KilimanjaroSansTallRound1 to show up on my mobile site. My website is KaitlinCreative.co. I know there is certain code to fix it, but I'm not super code savvy so I'm unsure of how to fix it. 

Current CSS Code:

@font-face {

    font-family: 'KilimanjaroSansTallROund1';

       src: url('FontURL');

  }

h1 {font-family: 'KilimanjaroSansTallROund1';}
h2 {font-family: 'KilimanjaroSansTallROund1';}
h3 {font-family: 'KilimanjaroSansTallROund1';}
p {font-family: 'KilimanjaroSansTallROund1';}

You need to enter real url