jquery滚动功能无法正常工作

Question

我在滚动时使用此代码更改位置。问题是滚动到页面顶部时css SSLContext sslContext = null; try { sslContext = new SSLContextBuilder().loadTrustMaterial(null, new TrustSelfSignedStrategy() { @Override public boolean isTrusted(X509Certificate[] arg0, String arg1) throws CertificateException { return true; } }).build(); } catch (KeyManagementException | NoSuchAlgorithmException | KeyStoreException e) { //Show some Msg } CloseableHttpClient httpClient = HttpClients.custom() .setDefaultHeaders(headers) .setSSLContext(sslContext) .setSSLHostnameVerifier(new NoopHostnameVerifier()) .build(); 无法正常工作。 这是代码。

top:'0px'

并链接到page。请帮助。感谢。

Answer 1

试试这个。

var $div = $('div.bk-form-wrap');  
$(window).scroll(function() {
    var stickySidebar = $('.bk-form-wrap').offset().top;
    if ($(window).scrollTop() > stickySidebar) {
         $div.css({
             position:'fixed',
             height: '70px'
              },1000);
        $div.animate({
            top: '95px'
            //top:'100%',
           // marginTop: - $div.height() 
        });
    }

    else if ($(window).scrollTop() == 0) {
       //Call your event here
         $div.css({
             position:'relative'
              });
           $div.animate({
            top: '0px'
        },500);
    }   
});