Hide Code Block on Mobile Only

Site URL: https://agicreative.com/work/still/architecture

Site Password: password

I have some navigation I added below the banner on some pages, is there any way I can hide this or modify it for mobile view? It shows centered on mobile and doesn't look good.

If it means anything, this is the code I am using for that navigation.

<div class="still-work-navigation-container">
<a href="/work/still/architecture"class="still-work-navigation-active">architecture</a>
<a href="/work/still/food">food / beverage</a>
<a href="/work/still/healthcare">healthcare</a>
<a href="/work/still/industrial">industrial</a>
<a href="/work/still/lifestyle">lifestyle</a>
<a href="/work/still/product">product</a>
</div>

add to Home > design > custom CSS

@media screen and (max-width:640px) {
.still-work-navigation-container {display: none;}
}