CSS for Mobile Menu Subheadings Font Size

I have a question regarding my mobile menu subnav headings. With some help from someone on here, I changed the font size of the Menu heading and the subheadings but two of my subheadings that are folders to sub-sub-headings weren't affected by the code change. My website is www.forestforthetreesmedia.com. Could someone take a look at it on mobile and see what I need to change so all the subheadings are affected. I tried a few different code inserts based on what I saw with Google Chrome Inspect but couldn't nail it down.

I used this code to change the subheadings:

div#mobileNav a {
    font-size: 26px !important;
}

Just change a to *

div#mobileNav * {
    font-size: 26px !important;
}

With 7.1 version, we will use this CSS code to change mobile menu subheading size

div.header-menu-controls ~ div.header-menu-nav-item a {
    font-size: 12px;
}