No, I’m sure that I don’t have that meta code in my theme.
Also the problem that some objects change position after the page load, is held in common in all of the browsers, but in the Safari, it don’t change position after the page load.
The menu/links css seems a little odd with padding & negative margins. Seems to me that it would be easier to set the width of each li to 12.5% (1/8) [perhaps with box-sizing:border-box] might be the way to go.
Farzad I think It’s better to use `display: table` for the `ul`, and `display: table-cell` for the `li`’s. This will force the browser to render your menu like its inside a table and the items will adjust themselves and you don’t need to worry about width anymore. e.g: apple.com top nav