javascript - 第二个 jQuery "scrollTop"不起作用

标签 javascript jquery html css

好吧，我无法弄清楚这个问题。这就是问题所在。

我在页面加载时有 scrollTop Jquery，它在延迟后向下滚动页面以供用户采取行动。但是在单击按钮“#b3，#b3b”之后，我无法让另一个 scrollTop 工作，并且在延迟滚动到页面底部之后。

它应该滚动到底部的 .comp 元素，但它没有或只是向下滚动了一点点。

谁能告诉我如何让页面在点击按钮后第二次滚动到底部元素？

$(document).ready(function () {
    $('html, body').delay(1500).animate({
        scrollTop: $('.button').offset().top
    }, 'slow');
	
	

	$("#b1,#b1b").click(function(){
		$("#a1").fadeOut('fast'),$("#a2").fadeIn('slow');
	});
	$("#b2,#b2b").click(function(){
		$("#a2").fadeOut('fast'),$("#a3").fadeIn('slow');
	});
	$("#b3,#b3b").click(function(){
		$("#a3").fadeOut('fast'),$("#a4").fadeIn('slow');
		
	$("#bar").width(0);
		$("#bar").delay(150).animate({width: '+=40%'},'slow').delay(1200).animate({width: '+=20%'},'slow').delay(1000).animate({width: '+=20%'},'slow').delay(2000).animate({width: '+=20%'},'slow');
	
	
	
	
	$('html, body').delay(10000).animate({
		scrollTop: $('.comp').offset().top
	}, 'slow');

	
	
	
	$('#r1').show(500).delay(2000).hide(500);
	$('#r2').delay(2000).show(500).delay(2000).hide(500);
	$('#r3').delay(4500).show(500).delay(2000).hide(500);
	$('#r4').delay(7000).show(500);
	$('#r5').delay(8500).show(500);
	
	$('#rb1').delay(2000).show(500);
	$('#rb2').delay(4500).show(500);
	$('#rb3').delay(7500).show(500);
	

	});
	
	
});
* {
	margin: 0;
	padding: 0;
	border: 0;
	font-size: 100%;
	font: inherit;
	vertical-align: baseline;
}
p,h1,h2,h3,h4,h5{
	padding-bottom: 1em;
}
body {
	background-color: #000;
	color: #FFF;
}
img {
	margin: 0px;
	padding: 0px;
	display: block;
}
#wrap {
	max-width: 1000px;
	margin: 10px;
	border: 1px solid #333;
	background-color: #292929;
	padding: 10px;
	border-radius: 8px;
	-moz-border-radius: 8px;
	-webkit-border-radius: 8px;
}
#header {
	font-family: Roboto, Helvetica, Arial, sans-serif;
	font-size: 1.6em;
	text-align: center;
}
#content {
}
#graphic {
}
#graphic img {
	width: 90%;
	height: auto;
	max-width: 400px;
	display: block;
	margin: auto;
	padding: 5px;
	border: 1px solid #525252;
	background-color: #3C3C3C;
}
#text {
	margin-top: 15px;
}
#text p {
	font-family: Arial, Helvetica, sans-serif;
	font-size: 0.9em;
	text-align: center;
	line-height: 1.2em;
}
#javascript_countdown_time {
	font-weight: bold;
	color: #F60;
}
.actionbox  {
	border-top-width: 1px;
	border-right-width: 0px;
	border-bottom-width: 0px;
	border-left-width: 0px;
	border-top-style: solid;
	border-right-style: solid;
	border-bottom-style: solid;
	border-left-style: solid;
	border-top-color: #999;
	border-right-color: #999;
	border-bottom-color: #999;
	border-left-color: #999;
	padding-top: 20px;
}
.actionbox h2  {
	clear: both;
	display: block;
	font-family: Roboto, Helvetica, Arial, sans-serif;
	font-size: 1.3em;
	font-weight: 300;
	line-height: 1.1em;
}
.actionbox h2 strong {
	font-weight: bold;
}
.actionbox h3 {
	font-family: Helvetica, Roboto, Tahoma, sans-serif;
	font-weight: bold;
	font-size: 1em;
	color: #F90;
}
.actionbox h4 {
	text-align: center;
	font-size: 1em;
	font-weight: bold;
	font-family: Arial, Helvetica, sans-serif;
	padding-top: 30px;
}
.actionbox ul {
	margin-left: 10px;
	margin-top: 20px;
}
.actionbox ul li{
	background-repeat: no-repeat;
	list-style-type: none;
	padding-left: 30px;
	background-size: 20px;
	padding-bottom: 1em;
	background-position: left top;
	padding-top: 3px;
	font-family: Arial, Helvetica, sans-serif;
	font-size: 0.9em;
}
.actionbox ol {
	margin-left: 30px;
}
.actionbox ol li {
	padding-bottom: 1em;
	font-family: Roboto, Helvetica, Arial, sans-serif;
	font-size: 0.9em;
}
.butbox {
	display: table;
	width: 100%;
	table-layout: fixed;
}
.butbox .button, .butbox .buttonr {
	display: table-cell;
}
.button a{
	text-decoration: none;
	text-shadow: 1px 1px 0 rgba(0,0,0,0.3);
	background-color: #00CB00;
	background-image: -webkit-gradient(linear, left top, left bottom, from(#00CB00), to(#009A00));
	background-image: -webkit-linear-gradient(top, #00CB00, #009A00);
	background-image: -moz-linear-gradient(top, #00CB00, #009A00);
	background-image: -ms-linear-gradient(top, #00CB00, #009A00);
	background-image: -o-linear-gradient(top, #00CB00, #009A00);
	background-image: linear-gradient(to bottom, #00CB00, #009A00);
filter:progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr=#00CB00, endColorstr=#009A00);
	display: block;
	border-top-style: solid;
	border-right-style: solid;
	border-bottom-style: solid;
	border-left-style: solid;
	border-top-width: 0px;
	border-right-width: 2px;
	border-bottom-width: 0px;
	border-left-width: 0px;
	border-top-color: #292929;
	border-right-color: #292929;
	border-bottom-color: #292929;
	border-left-color: #292929;
	-webkit-border-top-left-radius:5px;
	-moz-border-radius-topleft:5px;
	border-top-left-radius:5px;
	-webkit-border-top-right-radius:0px;
	-moz-border-radius-topright:0px;
	border-top-right-radius:0px;
	-webkit-border-bottom-right-radius:0px;
	-moz-border-radius-bottomright:0px;
	border-bottom-right-radius:0px;
	-webkit-border-bottom-left-radius:5px;
	-moz-border-radius-bottomleft:5px;
	border-bottom-left-radius:5px;
}
.button a:hover {
 background-color: #009800; background-image: -webkit-gradient(linear, left top, left bottom, from(#009800), to(#006700));
 background-image: -webkit-linear-gradient(top, #009800, #006700);
 background-image: -moz-linear-gradient(top, #009800, #006700);
 background-image: -ms-linear-gradient(top, #009800, #006700);
 background-image: -o-linear-gradient(top, #009800, #006700);
 background-image: linear-gradient(to bottom, #009800, #006700);filter:progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr=#009800, endColorstr=#006700);
}
.buttonr a {
	text-decoration: none;
	text-shadow: 1px 1px 0 rgba(0,0,0,0.3);
	background-color: #CC0000;
	background-image: -webkit-gradient(linear, left top, left bottom, from(#CC0000), to(#9b0000));
	background-image: -webkit-linear-gradient(top, #CC0000, #9b0000);
	background-image: -moz-linear-gradient(top, #CC0000, #9b0000);
	background-image: -ms-linear-gradient(top, #CC0000, #9b0000);
	background-image: -o-linear-gradient(top, #CC0000, #9b0000);
	background-image: linear-gradient(to bottom, #CC0000, #9b0000);
filter:progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr=#CC0000, endColorstr=#9b0000);
	border-top-width: 0px;
	border-right-width: 0px;
	border-bottom-width: 0px;
	border-left-width: 2px;
	border-top-style: solid;
	border-right-style: solid;
	border-bottom-style: solid;
	border-left-style: solid;
	border-top-color: #292929;
	border-right-color: #292929;
	border-bottom-color: #292929;
	border-left-color: #292929;
	display: block;
	-webkit-border-top-left-radius:0px;
	-moz-border-radius-topleft:0px;
	border-top-left-radius:0px;
	-webkit-border-top-right-radius:5px;
	-moz-border-radius-topright:5px;
	border-top-right-radius:5px;
	-webkit-border-bottom-right-radius:5px;
	-moz-border-radius-bottomright:5px;
	border-bottom-right-radius:5px;
	-webkit-border-bottom-left-radius:0px;
	-moz-border-radius-bottomleft:0px;
	border-bottom-left-radius:0px;
}
.buttonr a:hover{
 background-color: #990000; background-image: -webkit-gradient(linear, left top, left bottom, from(#990000), to(#680000));
 background-image: -webkit-linear-gradient(top, #990000, #680000);
 background-image: -moz-linear-gradient(top, #990000, #680000);
 background-image: -ms-linear-gradient(top, #990000, #680000);
 background-image: -o-linear-gradient(top, #990000, #680000);
 background-image: linear-gradient(to bottom, #990000, #680000);filter:progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr=#990000, endColorstr=#680000);
}
.buttxt a{
	text-align: center;
	padding: 5px;
	font-family: Roboto, Helvetica, Arial, sans-serif;
	font-size: 2em;
	text-decoration: none;
	color: #FFF;
}
.buttonlast a {
	text-decoration: none;
	text-shadow: 1px 1px 0 rgba(0,0,0,0.3);
	background-color: #00CB00;
	background-image: -webkit-gradient(linear, left top, left bottom, from(#00CB00), to(#009A00));
	background-image: -webkit-linear-gradient(top, #00CB00, #009A00);
	background-image: -moz-linear-gradient(top, #00CB00, #009A00);
	background-image: -ms-linear-gradient(top, #00CB00, #009A00);
	background-image: -o-linear-gradient(top, #00CB00, #009A00);
	background-image: linear-gradient(to bottom, #00CB00, #009A00);
filter:progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr=#00CB00, endColorstr=#009A00);
	display: block;
	border-top-style: solid;
	border-right-style: solid;
	border-bottom-style: solid;
	border-left-style: solid;
	border-top-width: 0px;
	border-right-width: 2px;
	border-bottom-width: 0px;
	border-left-width: 0px;
	border-top-color: #292929;
	border-right-color: #292929;
	border-bottom-color: #292929;
	border-left-color: #292929;
	border-radius: 5px;
	-moz-border-radius: 5px;
	-webkit-border-radius: 5px;
	margin-top: 10px;
}
.buttonlast a:hover {
	background-color: #009800;
	background-image: -webkit-gradient(linear, left top, left bottom, from(#009800), to(#006700));
	background-image: -webkit-linear-gradient(top, #009800, #006700);
	background-image: -moz-linear-gradient(top, #009800, #006700);
	background-image: -ms-linear-gradient(top, #009800, #006700);
	background-image: -o-linear-gradient(top, #009800, #006700);
	background-image: linear-gradient(to bottom, #009800, #006700);
filter:progid:DXImageTransform.Microsoft.gradient(GradientType=0,startColorstr=#009800, endColorstr=#006700);}
.comp {
	padding-top: 20px;
	padding-bottom: 20px;
	font-family: Arial, Helvetica, sans-serif;
	font-size: 0.7em;
	text-align: center;
}
#bar {
	background-color: #3C0;
	border-top-style: none;
	border-right-style: none;
	border-bottom-style: none;
	border-left-style: none;
	height: 30px;
	width: 100%;
	margin-bottom: 15px;
}
#percentage {
	font-family: Arial, Helvetica, sans-serif;
	font-size: 0.9em;
	text-align: center;
	line-height: 30px;
}
.orange {
	color: #F60;
}
#a2,#a3,#a4,#rb1,#r2,#rb2,#r3,#rb3,#r4,#r5 {
	display: none;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="wrap">
    <div id="header"><h1>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer nec odio. Praesent libero. Sed cursus ante dapibus diam. </h1>
    </div>
  <div id="content">
    <div id="graphic"><img src="#" alt="" height="500px" width="300px"></div>
    <div id="text">
      <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer nec odio. Praesent libero. Sed cursus ante dapibus diam. Sed nisi. Nulla quis sem at nibh elementum imperdiet. Duis sagittis ipsum. Praesent mauris. Fusce nec tellus sed augue semper porta. Mauris massa. Vestibulum lacinia arcu eget nulla. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Curabitur sodales ligula in libero. Sed dignissim lacinia nunc. Curabitur tortor. Pellentesque nibh. Aenean quam. In scelerisque sem at dolor. Maecenas mattis. Sed convallis tristique sem. Proin ut ligula vel nunc egestas porttitor. Morbi lectus risus, iaculis vel, suscipit quis, luctus non, massa. Fusce ac turpis quis ligula lacinia aliquet. Mauris ipsum. Nulla metus metus, ullamcorper vel, tincidunt sed, euismod in, nibh. Quisque volutpat condimentum velit. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Nam nec ante. Sed lacinia, urna non tincidunt mattis, tortor neque adipiscing diam, a cursus ipsum ante quis turpis. Nulla facilisi. Ut fringilla. Suspendisse potenti. Nunc feugiat mi a tellus consequat imperdiet. Vestibulum sapien. Proin quam. Etiam ultrices. Suspendisse in justo eu magna luctus suscipit. Sed lectus. Integer euismod lacus luctus magna. Quisque cursus, metus vitae pharetra auctor, sem massa mattis sem, at interdum magna augue eget diam. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia Curae; Morbi lacinia molestie dui. Praesent blandit dolor. Sed non quam. In vel mi sit amet augue congue elementum. Morbi in ipsum sit amet pede facilisis laoreet. Donec lacus nunc, viverra nec.</p>
        
      <div class="actionbox" id="a3" style="display:block">
                <h2><strong>Question 3:</strong></h2>
                <div class="butbox">
                    <div class="button buttxt" id="b3"><a href="#/">YES</a></div>
                    <div class="buttonr buttxt" id="b3b"><a href="#/">NO</a></div>
            	</div>
   	  </div>
      <div class="actionbox" id="a4">
        <div id="bar"><div id="percentage"></div></div>
               <h3 id="r1">step1...</h3>
               <h3 id="r2">step2...</h3>
               <h3 id="r3">step3...</h3>
               <h3 id="r4">step4...</h3>

               <ul>
               	<li id="rb1">xxx</li>
                <li id="rb2">xxx</li>
                <li id="rb3">xxx</li>
               </ul>

               <div id="r5" class="congrats">
Lorem ipsum dolor sit amet, consectetur adipiscing elit. Integer nec odio. Praesent libero. Sed cursus ante dapibus diam. Sed nisi. Nulla quis sem at nibh elementum imperdiet. Duis sagittis ipsum. Praesent mauris. Fusce nec tellus sed augue semper porta. Mauris massa. Vestibulum lacinia arcu eget nulla. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Curabitur sodales ligula in libero. Sed dignissim lacinia nunc. Curabitur tortor. Pellentesque nibh. Aenean quam. In scelerisque sem at dolor. Maecenas mattis. Sed convallis tristique sem. Proin ut ligula vel nunc egestas porttitor. Morbi lectus risus, iaculis vel, suscipit quis, luctus non, massa. Fusce ac turpis quis ligula lacinia aliquet. Mauris ipsum. Nulla metus metus, ullamcorper vel, tincidunt sed, euismod in, nibh. Quisque volutpat condimentum velit. Class aptent taciti sociosqu ad litora torquent per conubia nostra, per inceptos himenaeos. Nam nec ante. Sed lacinia, urna non tincidunt mattis, tortor neque adipiscing diam, a cursus ipsum ante quis turpis. Nulla facilisi. Ut fringilla. Suspendisse potenti. Nunc feugiat mi a tellus consequat imperdiet. Vestibulum sapien. Proin quam. Etiam ultrices. Suspendisse in justo eu magna luctus suscipit. Sed lectus. Integer euismod lacus luctus magna. Quisque cursus, metus vitae pharetra auctor, sem massa mattis sem, at interdum magna augue eget diam. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia Curae; Morbi lacinia molestie dui. Praesent blandit dolor. Sed non quam. In vel mi sit amet augue congue elementum. Morbi in ipsum sit amet pede facilisis laoreet. Donec lacus nunc, viverra nec.
                 <div class="buttonlast buttxt"><a href="#/">I AGREE</a></div>
                 <div class="comp">xxxx</div>
               </div>
</div>
    </div>
  </div>
</div>

最佳答案

与其尝试以绝对时间延迟动画，不如通过在动画中嵌套函数使它们彼此相关，这些函数在另一个动画完成时执行。这样，您还可以相对确定要滚动到的元素在正确的时间到来时不会被隐藏(我认为这是您的问题)。

参见 this fiddle .

我搞砸了时间，但它应该给你一个想法。更改后的代码现在看起来像这样:

$("#b3,#b3b").click(function(){
  $("#a3").fadeOut('fast'),$("#a4").fadeIn('slow');

  $("#bar").width(0);
  $('#r1').show(500);
  $("#bar").delay(150).animate({width: '+=40%'},2000, function() {
    $('#r1').hide(500);
    $('#r2').show(500);
    $('#rb1').show(500);
    $("#bar").animate({width: '+=20%'},2000, function() {
      $('#r2').hide(500);
      $('#r3').show(500);
      $('#rb2').show(500);
      $("#bar").animate({width: '+=20%'},2000, function() {
        $('#r3').hide(500);
        $('#r4').show(500);
        $('#rb3').show(500);
        $("#bar").animate({width: '+=20%'},2000, function() {
          $('#r4').show(500);
          $("#r5").show(); // show the element before you scroll to its child
          $('html, body').animate({
            scrollTop: $('.comp').offset().top
          }, 'slow');
        });
      });
    });
  });
});

关于javascript - 第二个 jQuery "scrollTop"不起作用，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/37399111/

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