html iframe how to realize the jump page

When referencing the iframe on the page, how to achieve the jump of the page in that frame

For example, the following structure

If your jump button in an iframe, want to achieve the jump page will use the target attribute to a tag

1. Enter the address you want to jump in a label
2. The property value of the target to _top

<a href="index.html" target="_top">

This makes it possible to achieve a successful jump of the entire page.