我是bootstrap的初学者，正在使用轮播项目进行教程。在我的窗口中有一个确实出现的小旋转木马，但是有一个非常细的条和非常小的滚动项，而不是教程显示的......这里是代码：
<!DOCTYPE html>
<html lanf="en">
<head>
<title>Bootstrap basic website</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<!--Bootstrap -->
<!--Bootstrap -->
<link href="css/bootstrap.min.css" rel="stylesheet">
<!-- Your CSS -->
<link href="css/index.css" rel="sytlesheet">
</head>
<!-- Carousel Features -->
<div id="myCarousel" class="carousel slide">
<!-- Indicators -->
<ol class="carousel-indicators">
<li data-target="#myCarousel" data-slide-to="0" class="active"></li>
<li data-target="#myCarousel" data-slide-to="1"></li>
<li data-target="#myCarousel" data-slide-to="2"></li>
</ol>
<!-- Carousel Items -->
<div class="carousel-inner">
<div class="item active">First Slide</div>
<div class="item">Second Slide</div>
<div class="item">Third Slide</div>
</div>
<!-- Carousel nav -->
<a class="left carousel-control" href="#myCarousel" data-slide="prev"><span class="icon-prev"></span></a>
<a class="right carousel-control" href="#myCarousel" data-slide="next"><span class="icon-next"></span></a>
</div>
<!-- jQuery and javascript at end of page (necessary for Bootstrap's JavaScript plugins) -->
<script src="http://code.jquery.com/jquery.js"></script>
<script src="js/bootstrap.min.js"></script>
</body>
</html>
CSS:
body {margin-bottom: 80px;}
/*RESET*/
html, body, div, span, applet, object, iframe, h1, h2, h3, h4, h5, h6, p, blockquote, pre, a, abbr, acronym, address, big, cite, code, del, dfn, em, font, img, ins, kbd, q, s, samp, small, strike, strong, sub, sup, tt, var, b, u, i, center, dl, dt, dd, ol, ul, li, fieldset, form, label, legend, table, caption, tbody, tfoot, thead, tr, th, td {margin:0; padding:0; border:0; outline:0; font-size:100%; vertical-align:baseline; background:transparent;} body {line-height: 1;}ol, ul{list-style:none;} blockquote, q{quotes:none;} blockquote:before, blockquote:after, q:before, q:after{content:'';content:none;} :focus{outline:0;} ins{text-decoration:none;} del{text-decoration:line-through;} table{border-collapse:collapse; border-spacing:0;}
body {margin-bottom: 80px}
.item{
background-color: black;
text-align: center;
color: white;
line-height: 300px;
height: 300px;
font-size: 50px;}