Signatures cannot exceed 350 pixels in height total.
Signatures are exactly that: signatures. They're simply used for better identification of the poster and a form of expression on a forum. They do not need to take up anymore space than the content of your post. Signatures larger than 350 pixels in height are larger than they need to be. This includes blank space, text, images, and CSS.
Signatures cannot exceed 600 pixels in width.
The total width of a signature cannot exceed 600 pixels in width. Images stretch the forum for smaller styles, and 600 pixels is the point where some of our smaller width styles and smaller screen resolutions start to break the HTML tables if something is too large in the post content. Text is permitted to exceed the 600px width limit.
CSS can not exceed 600 pixels in width.
We need to clarify that while CSS can be fluid, a signature doesn't need to take up that much space and doesn't need to be that wide. While it may not hold the risk of stretching the forum, it defeats much of the purpose of a signature to have it larger than the width of signatures. In saying that, CSS is included in the 600px width limit.
Variable widths in CSS are not allowed.
In addition to the above, and to simplify CSS for everyone -- sorry CSS-wizzes -- CSS width in percentages is not permitted. It should be noted that all staff members have the ability to view the code in your signature, and if it's found to have a width% value, it will be disabled.
The combined size of any content in your signature may not exceed 1 megabyte.
Some of the users browsing the forum have slower internet speeds, so it takes longer for them to load pages than those who have faster connections. One of the many contributing aspects of loading a web page is loading images, and large file sizes heavily impact the load time of a webpage. Large file sizes for images are most commonly seen in large, animated .gif images. Your signature images may not exceed 1 megabyte in file size.