jQuery обнаружил, есть ли у элемента переполнение
if ($("#myoverflowingelement").prop('scrollWidth') > $("#myoverflowingelement").width() ) {
//this element is overflowing on the x axis
}
if ($("#myoverflowingelement").prop('scrollHeight') > $("#myoverflowingelement").height() ) {
//this element is overflowing on the y axis
}
Carnivorous Flamingo