If you need to add something custom to your sidebar or another widget area (something that doesn’t come with a plugin), this is one way of doing this.

In this case, we are adding a button with a link to the Primary Sidebar.

  1. Open a new post.
  2. Add your button as an image placed into the post then link that image to the link you want it to go to.
  3. Click the “Text” tab in the editor and copy all the code.
  4. Go to “Appearance —> Widgets” and place an empty “Text Widget” into the area where you want your button. Paste the code copied above into that Text Widget and click “Save.” — You have now added your button with a link into your sidebar.