Hi, I need to decrease the menu width in the cell phone view.
I tried to decrease the size of the drop down menu font but the width remains the same.
Sorry you are facing this issue, it would be my pleasure to help you.
Welcome to the Shopify community! 
Thanks for your good question.
Please share your site URL,
I will check out the issue and provide you a solution here.
Thank you so much Ketar. This is my site: testerway.com
I just need to reduce the menu width by a few pixels.