How to Reduce Size Chart Popup height in IRA Theme

[Carevip]

Hi,
I want to reduce the height of this size chart POPUP.
Its looking good in all devices except in chrome.
In chrome browser the Close button is not visible when the page is in 100%.
The Close button is only visible when the page size is reduced to 90%
The proper view is at 80%.

I want the size chart pop-up height to reduce and it should look like when the page is at 80%.
Page URL: https://vipinners.com/products/women-lime-yellow-pure-cotton-innerwear-camisole-with-slender-straps