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You can use the following advanced CSS properties to align a div to the center of the webpage:

1. display: flex; justify-content: center; align-items: center;

2. position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);

3. text-align: center; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);

4. margin: auto; position: absolute; top: 0; bottom: 0; left: 0; right: 0;

All of these CSS properties will work to center a div on a webpage. The one you choose will depend on the layout of your page and the specific requirements of the design.