hide section

I am trying to hide the section on the single page in my webshop that shows ‘related products’. Somehow I cannot seem to get this done in CSS. This is the code I use:

.woocommerce #product-29080 section.related.products {
display: none;
}

This is the page I want this to happen:
http://melaniesamat.com/bestellen/product/fenne-2/