Hello,

1) The correct way as I mentioned above will be as following for that particular page:

.page-id-7 .page-title-default {
height: 300px;
}

If it doesn’t work then provide admin panel login details and the URL of the page to check it myself and help you out accordingly.

2) For the category you it seems that you haven’t used the CSS for the item thats why its not pulling up.

Please add the following Custom CSS for that specific item.

.woodmart-product-categories.has-product-count .cat-item.cat-item-39 {
margin-top: -10px;
}

You can adjust the margin accordingly.

Best Regards.