Good day.
The strange behavior of Safari was found when using minimized css (everything works fine without minimization).
Here is the css site with which the problem occurred:
.input, .input-wrapper, .custom-combobox { width: 100% !important; box-sizing: border-box; display: block; max-width: none !important; max-width: none !important }
Here is a link to the page where the problem occurs.
Has anyone come across this?