Changed var_export() calls to use "true" as second parameter. Not sure which PHP version it was added in, but I could have sworn it wasn't there last time I checked.
.panel_wrapper div.current {
height: 290px;
}
#id, #style, #title, #dir, #hreflang, #lang, #classlist, #tabindex, #accesskey {
width: 200px;
}
#events_panel input {
width: 200px;
}