Earlier today I shared the news of the new option to add buttons to Google Sites. This afternoon Google announced another small update to Google Sites that is based on a small update to Google Forms.
Now when you embed a Google Form into a page on a Google Site the Form's background will be blended to match the appearance of the rest of the page. The Form will also be automatically sized to match the available space. And the Form will be optimized to for display on mobile and desktop browsers.
Applications for Education
These are not major updates and there is nothing for you to do to implement these changes in Google Sites (unless you're still using the old version of Google Sites in which case these updates don't apply). These changes could be helpful to you in the sense that improved display of your Forms will make it easier for students and parents to complete Forms on a variety of devices including laptops, tablets, and phones.