我有一个jquery幻灯片，在纵向和横向位置都有两种不同的图像尺寸。我设法将它们水平居中，但无法让它们垂直居中。
我尝试在#slideshow中使用垂直对齐{但它没有用。我尝试指定一个“顶部”像素位置以使景观图像居中，但是然后纵向像素不居中。有人可以帮忙吗？我已经包含了以下代码。谢谢！
function slideSwitch() {
var $active = $('#slideshow DIV.active');
if ( $active.length == 0 ) $active = $('#slideshow DIV:last');
// use this to pull the divs in the order they appear in the markup
var $next = $active.next().length ? $active.next()
: $('#slideshow DIV:first');
// uncomment below to pull the divs randomly
// var $sibs = $active.siblings();
// var rndNum = Math.floor(Math.random() * $sibs.length );
// var $next = $( $sibs[ rndNum ] );
$active.addClass('last-active');
$next.css({opacity: 0.0})
.addClass('active')
.animate({opacity: 1.0}, 300, function() {
$active.removeClass('active last-active');
});
}
var intervalID = "";
$(function() {
intervalID = setInterval( "slideSwitch()", 5000 );
});
</script>
<style type="text/css">
#slideshow {
position:relative;
height:600px;
width: 800px;
margin: 0 auto;
}
#slideshow DIV {
position:absolute;
top:0;
left:0;
z-index:15;
opacity:0.0;
height: 600px;
background-color: #FFF;
min-width: 100%;
filter: alpha(opacity=0);
cursor: pointer;
width: 800px;
}
#slideshow DIV.active {
z-index:17;
opacity:1.0;
filter: alpha(opacity=100);
}
#slideshow DIV.last-active {
z-index:16;
}
#slideshow DIV IMG {
display: block;
border: 0;
margin: auto;
max-height: 550px;
min-width: 350px;
max-width: 800px;
center= vertical: true, horizontal: true;
}
#Main_Nav {
font-family: "Univers LT Std 55";
font-size: 24px;
font-weight: normal;
color: #333;
text-decoration: none;
background-color: #FFF;
text-align: left;
cursor: crosshair;
padding: 35px 030px;
}
#Menu {
font-family: "Univers LT Std 55";
font-size: 18px;
color: #333;
background-color: #FFF;
text-align: right;
}
#Header {
font-family: "Univers LT Std 45 Light", Arial, sans-serif;
background-color: #FFF;
text-align: center;
font-size: 36px;
font-weight: lighter;
padding-top: 20px;
min-width: 100%;
padding-bottom: 40px;
}
#Footer {
font-family: "Univers LT Std 45 Light", Arial, sans-serif;
font-size: 16px;
font-weight: lighter;
color: #333;
text-align: center;
padding-top: 10px;
}
</style>
</head>
<body style="font-weight: lighter; font-style: normal; font-family: 'Univers LT Std 45 Light', Arial, sans-serif; text-align: center;">
<div class="Header" id="Header"><a style="color:#333; text-decoration:none; font-size: 28px;" href="http://csutorasliando.com/">Csutoras + Liando</a></div>
</div>
<div id="slideshow">
<div class="active">
<img src="../Images/Final/Web/CL_Puri_2_CL.jpg" alt="Slideshow Image 1" width="600" height="420" align="absmiddle" onclick="clearInterval(intervalID); slideSwitch(); intervalID = setInterval( "slideSwitch()", 5000)"; top="100" /></p>
<p>Puri House (expected completion 2012), Indonesia </p>
</div>
<div>
<img src="../Images/Final/Web/CL_Warsaw-Embassy_1_Richters.jpg" alt="Slideshow Image 2" width="735" height="365" onClick="clearInterval(intervalID); slideSwitch(); intervalID = setInterval( "slideSwitch()", 5000)" />
</p>
<p>Warsaw Embassy 2009, Poland </p>
</div>
<div>
<img src="../Images/Final/Web/CL_Warsaw-Embassy_2_Cook.jpg" alt="Slideshow Image 3" width="600" height="420" onClick="clearInterval(intervalID); slideSwitch(); intervalID = setInterval( "slideSwitch()", 5000)" />
</p>
<p>Warsaw Embassy 2009, Poland </p>
</div>
<div>
<img src="../Images/Final/Web/CL_Natsis_1_TFA.jpg" alt="Slideshow Image 4" width="600" height="420" onClick="clearInterval(intervalID); slideSwitch(); intervalID = setInterval( "slideSwitch()", 5000)" />
</p>
<p>Natsis House 2011, Greece </p>
</div>
<div>
<img src="../Images/Final/Web/CL_Turban_2_CL.jpg" alt="Slideshow Image 5" width="600" height="420" onClick="clearInterval(intervalID); slideSwitch(); intervalID = setInterval( "slideSwitch()", 5000)" />
</p>
<p>Turban utca 2007, Hungary </p>
</div>
<div>
<img src="../Images/Final/Web/CL_Broadway_4_Nolan.jpg" alt="Slideshow Image 6" width="600" height="420" onClick="clearInterval(intervalID); slideSwitch(); intervalID = setInterval( "slideSwitch()", 5000)" />
</p>
<p>Broadway School 2011, United Kingdom </p>
</div>
<div>
<img src="../Images/Final/Web/CL_Broadway_1_Nolan.jpg" alt="Slideshow Image 7" width="600" height="420" onClick="clearInterval(intervalID); slideSwitch(); intervalID = setInterval( "slideSwitch()", 5000)" />
</p>
<p>Broadway School 2011, United Kingdom </p>
</div>
<div>
<img src="../Images/Final/Web/CL_Blaak_6_CL.jpg" alt="Slideshow Image 8" width="600" height="420" onClick="clearInterval(intervalID); slideSwitch(); intervalID = setInterval( "slideSwitch()", 5000)" />
</p>
<p>Blaak Apartments 2005, the Netherlands </p>
</div>
<div>
<img src="../Images/Final/Web/CL_Brentwood_3_Riddle.jpg" alt="Slideshow Image 9" width="420" height="550" onClick="clearInterval(intervalID); slideSwitch(); intervalID = setInterval( "slideSwitch()", 5000)" />
</p>
<p>Brentwood School 2011, United Kingdom </p>
</div>
<div>
<img src="../Images/Final/Web/CL_Brentwood_4_Riddle.jpg" alt="Slideshow Image 10" width="600" height="550" onClick="clearInterval(intervalID); slideSwitch(); intervalID = setInterval( "slideSwitch()", 5000)" />
</p>
<p>Brentwood School 2011, United Kingdom </p>
</div>
<div>
<img src="../Images/Final/Web/CL_Puri_7_CL.jpg" alt="Slideshow Image 11" width="600" height="420" onClick="clearInterval(intervalID); slideSwitch(); intervalID = setInterval( "slideSwitch()", 5000)" />
</p>
<p>Puri House (expected completion 2012), Indonesia </p>
</div>
<div>
<img src="../Images/Final/Web/CL_Furn_1_LC.jpg" alt="Slideshow Image 12" width="420" height="550" onClick="clearInterval(intervalID); slideSwitch(); intervalID = setInterval( "slideSwitch()", 5000)" />
</p>
<p>Movable furniture 2011, United Kingdom </p>
</div>
<div>
<img src="../Images/Final/Web/CL_Erste_1_TFA.jpg" alt="Slideshow Image 13" width="600" height="420" onClick="clearInterval(intervalID); slideSwitch(); intervalID = setInterval( "slideSwitch()", 5000)" />
</p>
<p>Erste Bank 2008, Austria </p>
</div>
<div>
<img src="../Images/Final/Web/CL_Solid-11_2_TFA.jpg" alt="Slideshow Image 14" width="600" height="420" onClick="clearInterval(intervalID); slideSwitch(); intervalID = setInterval( "slideSwitch()", 5000)" />
</p>
<p>Solid 11 mixed used complex 2011, the Netherlands </p>
</div>
<div>
<img src="../Images/Final/Web/CL_Phillimore_1_TFA.jpg" alt="Slideshow Image 15" width="420" height="550" onClick="clearInterval(intervalID); slideSwitch(); intervalID = setInterval( "slideSwitch()", 5000)" />
</p>
<p>Phillimore Garden Residence 2011, United Kindom </p>
</div>
<div>
<img src="../Images/Final/Web/CL_Silver-Rain_1_ML.jpg" alt="Slideshow Image 16" width="420" height="550" onClick="clearInterval(intervalID); slideSwitch(); intervalID = setInterval( "slideSwitch()", 5000)" />
</p>
<p>Summer Pavillion 2005, Estonia </p>
</div>
<div>
<img src="../Images/Final/Web/CL_Furn-4_ML.jpg" alt="Slideshow Image 14" width="600" height="420" onClick="clearInterval(intervalID); slideSwitch(); intervalID = setInterval( "slideSwitch()", 5000)" />
</p>
<p>Kingscross Library desk 2004, Australia </p>
</div>
答案 0 :(得分：0)
我过去使用的一个技巧是让div在垂直和水平方向上居中于另一个div中，就是这样做：
我只是写下了我的头脑，所以我无法粘贴我的原始代码，但也许这将是有用的。
<div style="width:800px; overflow:hidden">
<div style="display:table; margin:0 auto">
<div style="display:table-cell; vertical-align:middle; text-align:center; height:400px">
<img src="folder/myImage.jpg" />
</div>
</div>
</div>