define(['lazyload'], function () {
    var lazySizesConfig = window.lazySizesConfig || {};

	lazySizesConfig.expand = 100; // 计算视图高度，提前加载图片
	lazySizesConfig.loadMode = 1; // 只加载可见元素 也受expand * expFactor的影响
    lazySizesConfig.placeholder = 'data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsMAAA7DAcdvqGQAAAANSURBVBhXY3j37t1/AAliA8r60tGjAAAAAElFTkSuQmCC';

    return {
    };
});