列表项目符号在 IE7 中消失

Question

关于

所以这个问题已经被问了一次又一次，但我注意到有些不同； 见下文。

标准信息：

• FF 中显示项目
• 符号 IE 中不显示

项目符号查找

• 在
  元素（而不是
  • ）上设置 hasLayout 时，项目符号消失；这通常是在

Internet Explorer 中执行 *{zoom:1} Firebug

时完成的UL:

backgroundAttachment       "scroll" 
backgroundColor            "transparent" 
backgroundImage            "none" 
backgroundRepeat           "repeat" 
borderBottomColor          "#000000" 
borderBottomStyle          "none" 
borderBottomWidth          "medium" 
borderCollapse             "separate" 
borderColor                "#000000" 
borderLeftColor            "#000000" 
borderLeftStyle            "none" 
borderLeftWidth            "medium" 
borderRightColor           "#000000" 
borderRightStyle           "none" 
borderRightWidth           "medium" 
borderStyle                "none" 
borderTopColor             "#000000" 
borderTopStyle             "none" 
borderTopWidth             "medium" 
borderWidth                "medium" 
bottom                     "auto" 
clear                      "none" 
color                      "#000000" 
cursor                     "move" 
direction                  "ltr" 
display                    "block" 
fontFamily                 "tahoma, arial, helvetica, sans-serif" 
fontSize                   "0.9em" 
fontStyle                  "normal" 
fontVariant                "normal" 
fontWeight                 400 
height                     "auto" 
left                       "auto" 
letterSpacing              "normal" 
lineHeight                 "normal" 
listStyleImage             "none" 
listStylePosition          "outside" 
listStyleType              "disc" 
margin                     "auto auto auto 30pt" 
marginBottom               "auto" 
marginLeft                 "30pt" 
marginRight                "auto" 
marginTop                  "auto" 
maxHeight                  "none" 
maxWidth                   "none" 
minHeight                  "auto" 
minWidth                   "auto" 
overflow                   "visible" 
padding                    "0px" 
paddingBottom              "0px" 
paddingLeft                "0px" 
paddingRight               "0px" 
paddingTop                 "0px" 
pageBreakAfter             "auto" 
pageBreakBefore            "auto" 
position                   "static" 
right                      "auto" 
tableLayout                "auto" 
textAlign                  "left" 
textDecoration             "none" 
textIndent                 "0pt" 
textTransform              "none" 
top                        "auto" 
unicodeBidi                "normal" 
verticalAlign              "auto" 
visibility                 "inherit" 
whiteSpace                 "normal" 
width                      "auto" 
wordSpacing                "normal"     

LI:

backgroundAttachment       "scroll" 
backgroundColor            "transparent" 
backgroundImage            "none" 
backgroundRepeat           "repeat" 
borderBottomColor          "#000000" 
borderBottomStyle          "none" 
borderBottomWidth          "medium" 
borderCollapse             "separate" 
borderColor                "#000000" 
borderLeftColor            "#000000" 
borderLeftStyle            "none" 
borderLeftWidth            "medium" 
borderRightColor           "#000000" 
borderRightStyle           "none" 
borderRightWidth           "medium" 
borderStyle                "none" 
borderTopColor             "#000000" 
borderTopStyle             "none" 
borderTopWidth             "medium" 
borderWidth                "medium" 
bottom                     "auto" 
clear                      "none" 
color                      "#000000" 
cursor                     "move" 
direction                  "ltr" 
display                    "block" 
fontFamily                 "tahoma, arial, helvetica, sans-serif" 
fontSize                   "0.9em" 
fontStyle                  "normal" 
fontVariant                "normal" 
fontWeight                 400 
height                     "auto" 
left                       "auto" 
letterSpacing              "normal" 
lineHeight                 "normal" 
listStyleImage             "none" 
listStylePosition          "outside" 
listStyleType              "disc" 
margin                     "auto" 
marginBottom               "auto" 
marginLeft                 "auto" 
marginRight                "auto" 
marginTop                  "auto" 
maxHeight                  "none" 
maxWidth                   "none" 
minHeight                  "auto" 
minWidth                   "auto" 
overflow                   "visible" 
padding                    "0px" 
paddingBottom              "0px" 
paddingLeft                "0px" 
paddingRight               "0px" 
paddingTop                 "0px" 
pageBreakAfter             "auto" 
pageBreakBefore            "auto" 
position                   "static" 
right                      "auto" 
tableLayout                "auto" 
textAlign                  "left" 
textDecoration             "none" 
textIndent                 "0pt" 
textTransform              "none" 
top                        "auto" 
unicodeBidi                "normal" 
verticalAlign              "auto" 
visibility                 "inherit" 
whiteSpace                 "normal" 
width                      "auto" 
wordSpacing                "normal"

知道为什么将布局设置为

会修改项目符号吗？
我认为这可能是边距/填充，但 IE 中的 Firebug 显示了相同的 w/|w/o hasLayout。

裸页示例：

   <!DOCTYPE HTML PUBLIC "-//IETF//DTD HTML//EN">
   <html>
   <head>
      <title>Default</title>
      <style type="text/css" media="all">ul {zoom:1;}</style>
   </head>
   <body>
      <ul>
         <li>foo</li>
         <li>bar</li>
         <li>foo bar foo bar foo bar foo bar foo bar foo bar foo bar foo bar
             foo bar foo bar foo bar foo bar foo bar foo bar foo bar foo bar
             foo bar foo bar foo bar foo bar foo bar foo bar foo bar foo bar
             foo bar foo bar foo bar foo bar foo bar foo bar foo bar foo bar
             foo bar foo bar foo bar foo bar foo bar foo bar foo bar foo bar
             foo bar foo bar foo bar foo bar foo bar foo bar foo bar foo bar
             foo bar foo bar foo bar foo bar foo bar foo bar foo bar foo bar
             foo bar foo bar foo bar foo bar foo bar foo bar foo bar foo bar
             foo bar foo bar foo bar foo bar foo bar foo bar foo bar foo bar
             foo bar foo bar foo bar foo bar foo bar foo bar foo bar foo bar
             foo bar foo bar foo bar foo bar foo bar foo bar foo bar foo bar
             foo bar foo bar foo bar foo bar foo bar foo bar foo bar foo bar
             foo bar foo bar foo bar foo bar foo bar foo bar foo bar foo bar
             foo bar foo bar foo bar foo bar foo bar foo bar foo bar foo bar
         </li>
      </ul>
   </body>
   </html>

在带和不带 zoom:1 的 IE7 中尝试上述操作。
注意： 因为这涉及 hasLayout，所以其他版本的 IE 可能会受到影响。

Answer 1

由于浏览器和浏览器版本之间的项目符号位置和大小不同，我停止使用默认项目符号，现在用图像替换它们。这解决了我在子弹方面遇到的所有问题，现在您可以轻松更改子弹的大小、颜色和形状。

ul{ 
    list-style-type: none;
    list-style-position: outside;
}
ul li{
    margin:0; 
    padding: 0 0 0 16px;
    background: url(bullet.gif) no-repeat left center;
}

对于打印，您可以添加一个使用默认项目符号的 css 文件，因为图像并不总是被打印。

这不适用于编号列表 (

)，所以不要忘记 ul css 选择器

Answer 2

我发现：

• 设置 li {margin-left: 1em} 可以解决
• {margin-left:9px} 你会开始看到右边缘的边缘 另一个有趣的事情

是，触发列表项上的 hasLayout (

)，将强制项目符号到文本块的底部。因此，如果您使用的是 *{zoom:1} 之类的内容，则需要在顶部垂直对齐 li：li{vertical-对齐：顶部}