TonyG
Thanks for finding problem and sorry it took me few days to return to this project and reply to you.
I found out that there is indeed a CSS filter in site:
body{
filter: drop-shadow(0px 3px 20px rgba(0, 0, 0, 0.1));
}
I didn't see its effect and I don't know what original site designer used it for, because I don't want to remove it and cause any unwanted change to site design, I edited the CSS code, as shown below.
body>*:not(.buttonizer){
filter: drop-shadow(0px 3px 20px rgba(0, 0, 0, 0.1));
}
It is working and now my button group are floating in page. Do you think it workaround is correct? will it cause any problem for buttonizer functions?
Update: It is indeed causing problem for site it seems that the menu drop down in header are going behind other elements using above code.
Do you have any suggestion to keep original code and exclude buttonizer from its effects?
Thanks.