Placement of the Add to Cart button

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

My Add to Cart button is misaligned on some devices and not others. I can't figure out the settings to adjust this. Anyone know why this is happening or how I can adjust it?

Thanks!
Amanda

Add to Home > Design > Custom CSS

@media screen and (max-width:767px) {
.sqs-add-to-cart-button {
    min-width: unset !important;
}
}