jQuery Scroll ширина
$('#test')[0].scrollWidth
Tequilian
$('#test')[0].scrollWidth$('#test')[0].scrollHeight$('#myDiv').prop('scrollHeight')$('#leave-reason-input').keyup(function() {
var height = $(this).scrollTop();
var initHeight = 5;
if(initHeight < height ) {
$(this).css({'height':'8rem'});
}
})