It works well if you make the heading bar a rich colour and then the border a slightly darker, off version of that colour. We can then spice it up a bit by adding a border. We want the main heading to stand out so we will make it a solid block of colour. Simply click anywhere within the text to move the cursor there, then click the Styles drop down menu and select the style you're after.
To change text to a certain style you don't need to click and drag to select all the text.
Using styles will save you time but will also ensure consistency within your document which will improve the professional look.
To the right is an example page to illustrate what we are going to look at creating.
Whilst I will explain how to lay out the page in Google Docs there is obviously nothing stopping you applying the same ideas within your documents made using other word processors. Thankfully it's not too difficult to create your own document styles and templates to work from which can really make your Docs stand out. And Google does provide some templates in their template gallery for Google Docs which aren't bad but also leave a bit of room for improvement.
If you're creating a presentation there are ample high quality themes to go at. Sometimes it can seem like documents created in Google Docs are doomed to mediocrity in the looks department.