OK, technically, it's "Flicker Vertigo": > Flicker vertigo, sometimes called the Bucha effect, is "an imbalance in brain-cell activity caused by exposure to lo

OK, technically, it's "Flicker Vertigo": > Flicker vertigo, sometimes called the Bucha effect, is "an imbalance in brain-cell activity caused by exposure to low-frequency flickering (or flashing) of a relatively bright light."[1] It is a disorientation-, vertigo-, and nausea-inducing effect of a strobe light flashing at 1 Hz to 20 Hz, approximately the frequency of human brainwaves.[2][3] The effects are similar to seizures caused by epilepsy (in particular photosensitive epilepsy), but are not restricted to people with histories of epilepsy. https://en.wikipedia.org/wiki/Flicker_vertigo https://en.wikipedia.org/wiki/Flicker_vertigo Happy now? Don't put crap in your page which can trigger neurological events, even if it isn't technically epilepsy!