What is this vertical transparent line appearing o

问题:

I've designed this page on Google Chrome, and it displays nicely. However if you check it on Safari Mac (Safari Windows displays it well) and it has a strange vertical line :

The line seems to be transparency of the white area (if I change the background color, it changes the line color). Another funny thing : there's an horizontal offset where the title is (the line is cut and moved to the left of the page)... a hint ?

I've inspected the elements, but there's no reason I can find.

Any help ?

回答1:

As per this reply: Stray vertical line above 965 pixels with border radius in Safari

You should add -webkit-background-clip: padding-box; to your containing class.