Mobile Custom Size Banner

If it is your ad then simply prepare a banner with this size:
https://adinserter.pro/documentation/code-editing#banners

If you are using some ad code then define ad size there.
For AdSense, for example, you can do it this way:
https://adinserter.pro/documentation/adsense-ads#code-generator

For device detection:
https://adinserter.pro/documentation/device-detection

Hi Team I am generating this code https://prnt.sc/15vuep2 as you can see in CSS I have define all size but when I check on live site mobile section size not changed. https://prnt.sc/15vul24 https://prnt.sc/15vuo1j i want this size example: https://prnt.sc/15vux4s

768×90 Desktop
640×80 Tablet
320×50 Phone

i want to apply this responsive size kindly help me.

Your code seems ok.
What is the problem?

Remote debugging doesn’t seem to be enabled.