On a very large test suite (8000 specs), a significant amount of time is spent just drawing the spec dots. Some sort of worse-than-linear artifact that summons itself only when you have 8000 floated elements trying to hang out together. This performance penalty is not seen with inline-block. In Chrome 29: Floated dots: 16.795s Inline-block dots: 2.774s Setting the dots to 'display: none;' takes about the same time as the inline-block figure, so this is probably a low enough bound (no need for chunked rendering or who knows what).
4.1 KiB
4.1 KiB