Adding Category Text next to Plus Icon on Hayden Template Mobile View

Site URL: https://www.immyhowardmillinery.com/bows

Hello everyone, 

I am hoping to add some Category text to the mobile view of my squarespace website, next to the 'plus' icon on my shop. Here is what the mobile view currently looks like:

And this is what I'd like it to look like:

If anyone might be able to help me with this, that would be fantastic! Thank you!

Immy

Add to Design > Custom CSS

/* category next to plus icon */
@media screen and (max-width:640px) {
.category-nav-toggle:before {
    content: "Category";
    text-align: left;
    float: left;
    margin-left: 10px;
}
}