Html CSS样式在Firefox/IE上不可用

我用Dreamviewer设计了一个网站。我应用于网页的样式在Firefox和IE上不可用，网页以纯HTML格式显示。但是所有的样式在Chrome中都能很好地显示出来。原因是什么？如何解决这个问题

这是我的样式表

*       { padding:0; margin:0; border:0; }

p   {  font-family:Arial, Helvetica, sans-serif; font-size:12px; color:#202020; line-height:180%;}
h1, h2, h3, h4  { color:#00486A; font-family:Arial, Helvetica, sans-serif;}
h1  { padding: 5px 5px 10px 0; font-size:24px;}

#wrapper    { margin:5px auto; width:1000px; background-color:#E6E6FF;} /*opacity:0.8; filter:alpha(opacity=80)}*/
body        { background:url(../img/backgrounds/sparkling_design-HD.jpg); background-repeat:repeat; }
#logo       { float:left; margin:10px 5px 10px 20px; opacity:1; ;}
#logo img   { opacity:1;}


#loginform  { float:right; padding: 20px 30px 10px 10px; margin: 10px 10px; }
#loginform a    { float:right; clear:both; }
#loginform a:link       { font-family:Arial, Helvetica, sans-serif; font-size:12px; color:#666; text-decoration:none; }
#loginform a:visited    { font-family:Arial, Helvetica, sans-serif; font-size:12px; color:#666; text-decoration:none; }
#loginform a:active     { font-family:Arial, Helvetica, sans-serif; font-size:12px; color:#666; text-decoration:none; }
#loginform a:hover      { font-family:Arial, Helvetica, sans-serif; font-size:12px; color:#999; text-decoration:none; text-decoration:underline;}
#loginform a:focus      { font-family:Arial, Helvetica, sans-serif; font-size:12px; color:#666; text-decoration:none; }
#loginform label    { float:left; width:70px; line-height: 100%; font-family:Arial, Helvetica, sans-serif; color:#666; font-size:12px; padding-top:5px;}
#loginform input    { -webkit-border-radius:5px; border-radius:5px; width:150px; line-height:180%; height:20px; margin-bottom:10px; padding-right:5px; border:1px solid #999; padding-left: 8px;}
#loginform input[type=submit]   { float:right; text-align:center; width:75px; background-color:#82BDFF; font-family:Arial, Helvetica, sans-serif; font-size:12px; color:#333333; padding-left:8px; border: 1px #999999 solid; line-height:10px;}
#loginform input[type=submit]:hover { background-color:#0060FF; color:#FFF; }

#topnav     { clear:both; padding:10px 5px 10px 5px; margin:5px 5px 5px 20px; border-top:1px #B7B1FE solid; border-bottom:1px #B7B1FE solid;}
#topnav ul li { display:inline; list-style-type:none; padding-left:20px; }
#topnav ul li a:link    { font-family:'Noto Serif',Arial, Helvetica, sans-serif; font-size:14px; text-decoration:none; color:#00324A; font-weight:bold; }
#topnav ul li a:active  { font-family:'Noto Serif',Arial, Helvetica, sans-serif; font-size:14px; text-decoration:none; color:#00324A; font-weight:bold; }
#topnav ul li a:visited { font-family:'Noto Serif',Arial, Helvetica, sans-serif; font-size:14px; text-decoration:none; color:#00324A; font-weight:bold; }
#topnav ul li a:hover   { font-family:'Noto Serif',Arial, Helvetica, sans-serif; font-size:14px; text-decoration:none; color:#7C96FC; font-weight:bold; }
#topnav ul li a:focus   { font-family:'Noto Serif',Arial, Helvetica, sans-serif; font-size:14px; text-decoration:none; color:#00324A; font-weight:bold; }

#banner { clear:both; margin:5px 20px; width:960px;}
#banner img { padding: 10px 0 10px 15px; }

#content    { float:left; width:700px; padding:10px 20px 10px 10px; margin:5px 5px 10px 10px; text-align:justify;}
#rightpane  { float:right; width:220px; font-family:Arial, Helvetica, sans-serif; font-size:12px; line-height:180%; color:#202020; margin-right: 20px; background-color:#D9DDFF; margin-bottom:20px; border:1px #0080C0 solid; border-radius:5px;}

#searchbox  { padding:10px 5px 10px 20px; margin-top:5px; }
#search input[type=text]    { border-radius:5px; -webkit-border-radius:5px; height: 20px; width:150px; border:1px #0080C0 solid; margin-right: 5px; }
#search input[type=submit]  { border-radius:5px; -webkit-border-radius:5px; -moz-border-radius:5px; height:25px; width:30px; border:1px #0080C0 solid; background-color:#82BDFF; line-height:5px;}
#search input[type=submit]:hover    { background-color:#0060FF; color:#FFF; }
#searchbox h3   { margin-left:0; }

/*---------------------Signup page------------ */
#form-content   { border: 1px solid #666; float:left; width:690px; padding:10px 20px 10px 10px; margin:5px 15px 10px 20px; }
#form-add-account input[type=text], #form-add-account input[type=password]  { width: 200px; height:20px; border-radius:5px; border: 1px #0080C0 solid;}
#form-add-account label { font-family:Arial, Helvetica, sans-serif; font-size:12px; color:#666;}
#form-add-account table { padding-top: 5px; }
/*---------------------------------------------*/


#latest-posts   { padding:10px 5px 10px 10px; margin:20px 0; }
#latest-posts ul    { list-style-type:none; padding-right:5px; padding-left:10px; line-height: 180%;}
#latest-posts ul li a:link      {  text-decoration:none; color:#202020;}
#latest-posts ul li a:active    {  text-decoration:none; color:#202020;}
#latest-posts ul li a:visited   {  text-decoration:none; color:#202020;}
#latest-posts ul li a:hover     {  text-decoration:none; color:#7C96FC; text-decoration:blink;}
#latest-posts ul li a:focus     {  text-decoration:none; color:#202020;}

#recommendations    { padding:10px 5px 10px 10px; margin:20px 0; }
#recommendations ul { list-style-type:none; padding-right:5px; padding-left:10px;}
#recommendations ul li a:link       {  text-decoration:none; color:#202020;}
#recommendations ul li a:active {  text-decoration:none; color:#202020;}
#recommendations ul li a:visited    {  text-decoration:none; color:#202020;}
#recommendations ul li a:hover      {  text-decoration:none; color:#7C96FC; text-decoration:blink;}
#recommendations ul li a:focus      {  text-decoration:none; color:#202020;}

#footer     { clear:both; width:980px; margin:10px auto; border-top:2px #CCCCCC dotted; font-family:Arial, Helvetica, sans-serif; font-size:10px; color:#666;}
#footer p   { font-family:Arial, Helvetica, sans-serif; font-size:10px; color:#666; }
#footer h4  { font-size:11px; padding-bottom:4px; }

#social-media   { float:left; width:230px; margin:10px 0px 10px 30px;}
#social-media ul    {  list-style-type:none; line-height:180%;}
#social-media ul li a:link      {  text-decoration:none; color:#666;}
#social-media ul li a:active        {  text-decoration:none; color:#666;}
#social-media ul li a:visited   {  text-decoration:none; color:#666;}
#social-media ul li a:hover     {  text-decoration:none; color:#7C96FC; text-decoration:blink;}
#social-media ul li a:focus     {  text-decoration:none; color:#666;}

#contacts   { float:left;width:230px; margin:10px 0px 10px 120px; }
#notice     { width:230px; float:right; margin-top:10px; }
#footer-bottom      {  clear:both; text-align:center; padding:10px 10px 20px 10px; border-top:2px #CCCCCC dotted; }

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我没有看到任何高级或复杂的CSS代码，所以所有现代浏览器都应该支持它。无论如何，这里有一个清单：

清单

• 您是否检查了不同的浏览器版本（您可以在Internet Explorer内部在旧版本之间切换）？检查：
• 你尝试过更简单的CSS吗
• 你清理浏览器缓存了吗
• 你试过“浏览器嗅探”吗？检查：
• 你在另一台电脑上试过了吗

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如果你在线测试，你可能想检查你的

.htaccess

发布你的代码，我们不能调试像这样模棱两可的东西（也是Dreamweaver）好的。我编辑了这个问题。其中哪些部分不起作用？你也可以发布HTML吗？此外，这些样式是在.CSS文件中链接到的还是在.HTML文件中？它们包含在styles.CSS文件中并链接到HTML文件。谢谢@Julian。我在Ubuntu和Windows上用firefox都试过了。但结果是一样的。完全没有样式。我试试你的清单。谢谢