This iframe demonstrates the wide border setting.

The color in the code is set to a vivid blue, using the style="border: 10px solid #0415FB" in the iframe code shown in the chart below.

You can change the size of the border and color as needed.
Scroll down the main page to see the code and instructions for reading the code.

Gracious thanks to Hawk in Texas for pointing out my earlier typo error on this code!