CLS issue and LCP issue

I have put this code in additional css.

.ai-viewport-3 {
min-height: 300px;
}

but Now a new problem has come. My website logo is not showing. I put a logo. then after a while it goes away.

https://www.screencast.com/t/kpzyjsPcJ

If the CLS issue has been fixed. Can you resolve this topic and start a new one please for your other question.

I have put the code given by you but I still don't see any improvement in CLS score of my website.

I just tested a page on your site and the Lab Data CLS was 0.007 which is well within the guidelines.
The Origin Summary and Field Data are collected over 28 days so those values will take time to update.

ok Thank you, i wait.

You're welcome