How to remove mobile text drop down menu and replace with hamburger on Avenue

Site URL: https://alexandrasaphire.squarespace.com/

Hello, Im trying to remove my mobile text drop-down menu and replace it with a hamburger. I found some code on another forum that allowed me to add the hamburger

/* HAMBURGER NAVIGATION */ #mobileMenuLink a:after { content: '☰'; color: hsl(63, 1%, 50%); width: 100%; text-align: left; position: absolute; top: 0; left: 0; }

But now i have both hamburger and text drop down menu and the hamburger is very tiny with no padding. 

Any help would be very much appreciated! Thanks!

Add to Design > Custom CSS

div#mobileMenuLink a {
    visibility: hidden;
    font-size: 0;
}
div#mobileMenuLink a:before {
    visibility: visible;
    content: "\e030";
    font-family: 'squarespace-ui-font';
    font-size: 50px;
    display: block;
}