Styling the cheveron down icon in form select element

Design help General
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Screen Shot 2024-01-04 at 16.22.42
Screen Shot 2024-01-04 at 16.22.421056×204 5.75 KB

This is what it looks like in weblfow, and below is the design. Can anyone help with styling the icon? How to change the icon size and add margin-right? Thanks!!

Screen Shot 2024-01-04 at 16.51.48
Screen Shot 2024-01-04 at 16.51.48832×144 1.57 KB

Here is my site Read-Only: LINK
(how to share your site Read-Only link)

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