I found the solution. Checking the option to show the meta box in “Screen Options”.
Yes, it will be nice if anyone has a solution for that.
Thank you Thomas!
The css rule solved the label from showing on top of the header but the issue I referred to is different and can be seen in the screenshots:
Showing the issue, label is under the image:
http://secretflyer.com/screenshots/issue.jpg
If you refresh the page after you already scrolled down, the label will overlay the image as it should: http://secretflyer.com/screenshots/no-issue-when-refesh-after-scrolling-down.jpg
