We present to your attention the first version of the iframe widget for calculating the cost of delivery.

The code is inserted into html, the values of the width and height of the block are changed.

The cost calculation widget is adaptable to the size of the iframe, but it is desirable that the iframe be at least 300 and at least 425 pixels high.

Preview

Source code

<iframe frameborder="0" height="425" src="https://www.express.ru/public/iframe/calculate.min.html" width="300"></iframe>