样式错乱了，这是为啥？

$(".form-datetime").datetimepicker(
{
weekStart: 1,
todayBtn:  1,
autoclose: 1,
todayHighlight: 1,
startView: 2,
forceParse: 0,
showMeridian: 1,
format: "yyyy-mm-dd hh:ii"
});