在 Firefox 中看起来不错，但图像未显示在中心。
在 Chrome 中，图像未在浏览器窗口的中心对齐
如果您刷新浏览器，它会对齐到中心，然后在几秒钟后回到左侧。
感谢您的任何帮助。这是演示模板。 谢谢。
CSS代码：
html,body {
margin: 0;
padding: 0;
text-align: center;
font-family: arial, Helvetica, sans-serif;
font-size: 14px;
/*background: #FFF url("images/border.jpg") repeat-y center;*/
}
#wrapper{
margin:0 30px;
width: 95%;
box-shadow: 0px 0px 20px rgba(0, 0, 0, 0.4);
}
#anti-shadow-div{
display:table;
overflow:hidden;
}
img { border: none; }
a { text-decoration: none; color: #2965a6; font-weight: bold;}
a:hover { text-decoration: underline; color: #fca00e; }
/*---------- Divs ----------*/
/*#header {
background: url("images/logo006.jpg") no-repeat center;
height: 120px;
width: 100%;
margin: 0 auto;
}*/
#header001 {
background: url("images/logo001.jpg") no-repeat center top;width:890px;height:133px;
height: 133px;
width: 900px;
margin: 0 auto;
font-family: arial, Helvetica, sans-serif;
font-size: 50px;
}
#indexheader{
background:#FFFFFF;
height: 30px;
width: 890px;
margin: 0 auto;
font-family: arial, Helvetica, sans-serif;
font-size: 50px;
}
#indeximg{
float:left;
}
#navibtn{
width:900px;
height:90px;
margin: 0 auto;
}
.navibtn001{
background:url(images/automart.jpg) no-repeat;
width:200px;
height:90px;
}
.navibtn002{
background:url(images/cab.jpg) no-repeat;
width:900px;
height:90px;
}
#logo002{
padding-top: 30px;
margin: 0 auto;
width: 890px;
voice-family: "\"}\"";
voice-family:inherit;
width: 850px;
}
/************
html>body #logo { width: 850px } /* for opera */
/*
#logo a:hover {
text-decoration: none;
} */
/*
#logo a {
float: left;
background: url("images/logo.jpg") no-repeat 0px 0px;
width: 317px;
height: 85px;
}
*******************/
/*---------- Divs ----------*/
#flsh{
background:url(images/vans/56%20dolpin/flv002.swf) no-repeat left top;width:640px;height:480px;
height: 500px;
width: 650px;
margin: 0 auto;
}
/*******************/
#menubutton{
width:100%;
height:20px;
text-align:center;
}
#container {
width: 100%;
overflow: hidden;
text-align: left;
font: 90% Tahoma, Helvetica, sans-serif;
margin: 0px auto;
border-top: 3px solid #6fb2e6;
border-bottom: 3px solid #ffb93f;
background: #e5e5e5;
}
* html #container {
overflow: visible;
}
#content{
float: right;
width: 690px;
background: #fff url(images/nav-edge.jpg) repeat-y;
padding-bottom: 40px;
min-height: 380px;
}
* html #content {height: 380px; overflow: visible;}
#maincontent {
float: left;
float: right;
padding: 30px 20px 0px 20px;
overflow: hidden;
width: 450px;
voice-family: "\"}\"";
voice-family:inherit;
width: 410px;
}
#maincontent001 {
float: left;
/* float: right;*/
padding: 30px 20px 0px 20px;
overflow: hidden;
width: 450px;
voice-family: "\"}\"";
voice-family:inherit;
width: 650px;
}
#rightdiv{
padding-top: 30px;
float: right;
width: 230px;
}
#rightdiv img{
padding: 1px;
border: 1px solid #6fb2e6;
}
#news{
width: 210px;
margin: 0 auto;
}
/*---------- Navigation Menu ----------*/
#navcontainer {
padding-top: 30px;
padding-left: 15px;
min-height: 380px;
float: left;
overflow: hidden;
width: 180px;
}
* html #navcontainer {height: 380px; overflow: visible;}
.nav {
width: 170px;
position:absolute;
list-style-type: none;
margin: 0;
padding: 0px;
font-size: 105%;
left: 228px;
top: 13px;
}
.nav li {
text-align: left;
margin: 3px 1px;
padding: 0;
}
.nav li a {
border: 1px solid #52a3e2;
display: block;
padding: 4px 0 4px 10px;
background: #6fb2e6;
color: #e5ffff;
font-weight: bold;
text-decoration: none;
width: 170px;
voice-family: "\"}\"";
voice-family:inherit;
width: 160px;
}
.nav li a:hover {
background: #ffb93f;
color: #949494;
font-weight: bold;
cursor: pointer;
}
/*---------- Footer ----------*/
#footer {
height: 30px;
margin: 0 auto;
padding: 10px 0 10px 0;
font-size: 80%;
text-align: center;
color: #6a6666;
width: 890px;
background: #fff;
}
#footerimg{
background:url("images/footer.jpg") no-repeat left top;width:890px;height:133px;
height: 133px;
width: 900px;
margin: 0 auto;
}
#footeradd{
background:url(images/carsalelogo.jpg)no-repeat left top;width:890px;height:133px;
height: 133px;
width: 900px;
margin: 0 auto;
}
#footertextleft{
margin-left: 10px;
text-align: left;
width: 450px;
float: left;
}
#footertextright{
margin-right: 10px;
text-align: right;
width: 350px;
float: right;
}
/*---------- Headings ----------*/
h1 {
padding-top: 0;
margin-top: 0;
font: 120% Arial;
font-weight: bold;
color: #5c94bf;
}
.mainheading{
font-weight: bold;
font-size: 123%;
}
h2 {
padding-top: 0px;
margin-top: 0px;
font: 110% arial;
font-weight: bold;
color: #5c94bf;
}
#subtext{
padding-top: 0px;
margin-top: 0px;
font: 110% arial;
font-weight: bold;
color: #5c94bf;
}
/*---------- Classes ----------*/
.underline{
padding-bottom: 3px;
width: 180px;
border-bottom: 2px solid #ffb93f;
}
.subheading{
font-weight: bold;
}
.submitbox{
width: 215px;
background: #b8d1e4;
padding: 5px;
text-align: left;
border: 1px solid #e5e5e5;
}
.submitbox p{
margin-top: 3px;
margin-bottom: 5px;
}
.submitbox button{
font-size: 95%;
background: #e5e5e5;
color: #949494;
border: none;
padding: 3px 8px;
font-weight: bold;
}
#maincontent ul{
list-style-image: url(images/bullet.png)
}
.advert{
width: 160px;
padding: 5px;
background: #fff;
border: 1px solid #c8c8c8;
}