Question

我需要你的帮助。

每当用户向下滚动表格时，表格标题的顶部和底部边框都会消失。一旦用户到达表格的底部，
表头的顶部和底部边框重新出现。你是如何解决这个问题的？我使用的是IE7，需要代码符合特定的浏览器。

<!DOCTYPE html>
<html>
<head>

<style type="text/css">

/*------------------------------------------------------------------
Table Style
------------------------------------------------------------------ */
table a:link {
    color: #666;
    font-weight: bold;
    text-decoration:none;
}
table a:visited {
    color: #999999;
    font-weight:bold;
    text-decoration:none;
}
table a:active,
table a:hover {
    color: #bd5a35;
    text-decoration:underline;
}
table {
    font-family:Arial, Helvetica, sans-serif;
    color:#666;
    font-size:12px;
    background:#eaebec;
    border-radius:3px;
    border-collapse:collapse; border-spacing: 0; 
    box-shadow: 0 1px 2px #d1d1d1;
}
table th {
    padding:10px 10px 10px 10px;
    border-top:1px solid #ccc;
    _border-bottom:1px solid #ccc;
    border-right: 1px solid #ccc;
    background: #ededed;
}   
table tr {
    text-align: center;
}   
table td {
    padding:10px;
    border-bottom:1px solid #ccc;
    border-left: 1px solid #ccc;
    border-right: 1px solid #ccc;
    background: #fafafa;
}   
table tr:hover td {
    background: #f2f2f2;
}
table th, table td {
    width: 160px; 
}
#container {
    width: 740px;
    height: 300px;
    overflow-x: scroll;
    overflow-y: scroll;
    border-left: 1px solid #ccc;
}
table tr td:first-child, table tr th:first-child {
    border-left: 0;
}
table thead {
    _position:fixed;
    position: relative;
}
table thead tr {
    position: relative;
    top: expression(this.offsetParent.scrollTop);
}
table tr:first-child td {
    border-top: 1px solid #ccc;
}
</style>

</head>

<body>

<div id="container">

<table id="data">

    <!-- Table Header -->
    <thead>
        <tr>
            <th>Task Details</th>
            <th>Firstname</th>
            <th>Progress</th>
            <th>Vital Task</th>
        </tr>
    </thead>
    <!-- Table Header -->

    <!-- Table Body -->
    <tbody>

        <tr>
            <td>Create pretty table design</td>
            <td>&nbsp;</td>
            <td>100%</td>
            <td>Yes</td>
        </tr><!-- Table Row -->

        <tr>
            <td>Take the dog for a walk</td>
            <td>&nbsp;</td>
            <td>100%</td>
            <td>Yes</td>
        </tr><!-- Darker Table Row -->

        <tr>
            <td>Waste half the day on Twitter</td>
            <td>&nbsp;</td>
            <td>20%</td>
            <td>No</td>
        </tr>

        <tr>
            <td>Feel inferior after viewing Dribble</td>
            <td>&nbsp;</td>
            <td>80%</td>
            <td>No</td>
        </tr>

        <tr>
            <td>Wince at &quot;to do&quot; list</td>
            <td>&nbsp;</td>
            <td>100%</td>
            <td>Yes</td>
        </tr>

        <tr>
            <td>Vow to complete personal project</td>
            <td>&nbsp;</td>
            <td>23%</td>
            <td>yes</td>
        </tr>

        <tr>
            <td>Procrastinate</td>
            <td>&nbsp;</td>
            <td>80%</td>
            <td>No</td>
        </tr>

        <tr>
            <td><a href="#yep-iit-doesnt-exist">Hyperlink Example</a></td>
            <td>&nbsp;</td>
            <td>80%</td>
            <td><a href="#inexistent-id">Another</a></td>
        </tr>

    </tbody>
    <!-- Table Body -->

</table>

</div>

</body>
</html>

Answer 1

第二天用一组新的眼睛玩了一些css后，以下适用于IE7：

<style type="text/css">

/*------------------------------------------------------------------
Table Style
------------------------------------------------------------------ */
table a:link {
    color: #666;
    font-weight: bold;
    text-decoration:none;
}
table a:visited {
    color: #999999;
    font-weight:bold;
    text-decoration:none;
}
table a:active,
table a:hover {
    color: #bd5a35;
    text-decoration:underline;
}
table {
    font-family:Arial, Helvetica, sans-serif;
    color:#666;
    font-size:12px;
    background:#eaebec;
    border-radius:3px;
    border-collapse:collapse; border-spacing: 0; 
    box-shadow: 0 1px 2px #d1d1d1;
    border-left: 1px solid #ccc;
    border-right: 1px solid #ccc;
}
table th {
    padding:10px 10px 10px 10px;
    border-bottom:1px solid #ccc;
    border-left: 1px solid #ccc;
    background: #ededed;
}   
table tr {
    text-align: center;
}   
table td {
    padding:10px;
    border-bottom:1px solid #ccc;
    border-left: 1px solid #ccc;

    background: #fafafa;
}   
table tr:hover td {
    background: #f2f2f2;
}
table th, table td {
    width: 160px; 
}
#container {
    width: 800px;
    height: 300px;
    overflow-x: scroll;
    overflow-y: scroll;
}
table tr td:first-child, table tr th:first-child {
    border-left: 0;
}

table thead {
    position:fixed;

}

TABLE THEAD TR TH {
    top:expression(this.offsetParent.scrollTop);
    border-top:1px solid #ccc;
    position:relative;
}

table tr:first-child td {
    border-top: 0;
}
</style>

Answer 2

Hai我刚才修改了你的CSS代码，请试试这个。

table thead {
    position:fixed;

}
table thead tr {
    position: relative;

}

表头的顶部和底部边界消失

2 个答案: