Question

我有这个html代码

<!doctype html>
<html>
<head>
    <meta charset="UTF-8">
    <link rel="stylesheet" type="text/css" href="popup.css">
</head>
<body>
    <div class="table-wrap">
        <table>
            <thead>
                <tr>
                    <th>Date</th>
                    <th>Time</th>
                    <th title="Timezone">TZ</th>
                    <th>Position</th>
                    <th title="Time To Waypoint">TTW</th>
                    <th title="Distance To Waypoint">DTW</th>
                    <th title="Distance To Go">DTG</th>
                    <th title="True Wind Direction">TWD</th>
                    <th title="True Wind Speed">TWS</th>
                    <th title="True Wind Angle">TWA</th>
                    <th title="Bearing To Waypoint - Heading">BTW</th>
                    <th>Sail</th>
                    <th title="Speed Through Water - Boat speed">STW</th>
                    <th title="Average True Wind Angle">ATWA</th>
                    <th title="Average Bearing To Waypoint">ABTW</th>
                </tr>
            </thead>
            <tbody id="pointsTable" align="center">
            </tbody>
        </table>
    </div>
    <br>
    <div id="localtimeDiv">
        <input type="checkbox" id="localtime" tabindex="-1">
        <label>Local Time</label>
    </div>
    <div id="versionDiv">
        <label>Version</label>
        <label id="version"></label>
    </div>
    <div id="gpxDiv">
        <input class="cssButton" type="button" id="gpxExport" value=".GPX" tabindex="-1">
    </div>
    <br>
    <textarea id="gpxOutput" rows="2" readonly tabindex="-1">...:::Click on GPX button for generate file :::...
Select All | Copy selection | Paste on your text editor | Save the file with the .gpx extension</textarea>
</body>
<script src="bundle.js"></script>
</html>

和此CSS代码

body {
    font-size: 11px;
    margin: 5px;
}

.table-wrap {
    border: 1px solid black;
}

.table-wrap table {
    text-align: center;
    width: 100%;
}

.table-wrap table th, .table-wrap table td {
    border: 1px solid black;
    padding: 1px;
    white-space: nowrap;
}

tr:hover td {
     background-color: lightgray;
}

tr {
     background-color: white;
}

#localtimeDiv {
    float: left;
}

#versionDiv {
    float: right;
}

#gpxDiv {
    margin: 0 auto;
    text-align: center;
}

.cssButton {
    font-size: 11px;
}

#gpxOutput {
    width: calc(100% - 5px);
    resize: none;
    font-size: 11px;
}

当我点击它时，我得到这个

Screen_1

我向下滚动，我明白了

screen_2

我希望当我滚动时总是这样可见（这是照片蒙太奇）

screen_3

我该如何放置它？

编辑：我无法设置固定宽度，表格永远不会相同，并且在选中“本地时间”复选框时也会发生变化

感谢您的帮助。

Answer 1

下面是一个示例，该示例在包装的DIV中仅使用少量JS来CSS translateY THEAD

// Fix table head
function tableHeadFix(ev) {
  const el = ev.target;
  el.querySelector("thead").style.transform = `translateY(${el.scrollTop}px)`;
}

[...document.querySelectorAll(".table-wrap")].forEach(el =>
  el.addEventListener("scroll", tableHeadFix)
);

.table-wrap{
  overflow-y: auto;
  height: 100px;
  border: 1px solid #000;
}

table {
  border-collapse: collapse;
  width: 100%;
}

th,
td {
  padding: 8px 4px;
}

th {
  background: #eee;
}

<div class="table-wrap">
  <table>
      <thead>
        <tr>
          <th>Date</th>
          <th>Time</th>
          <th title="Timezone">TZ</th>
          <th>Position</th>
          <th title="Time To Waypoint">TTW</th>
        </tr>
      </thead>
      <tbody id="pointsTable" align="center">
        <tr><td>a1</td><td>b</td><td>c</td><td>d</td><td>e</td></tr>
        <tr><td>a2</td><td>b</td><td>c</td><td>d</td><td>e</td></tr>
        <tr><td>a3</td><td>b</td><td>c</td><td>d</td><td>e</td></tr>
        <tr><td>a4</td><td>b</td><td>c</td><td>d</td><td>e</td></tr>
        <tr><td>a5</td><td>b</td><td>c</td><td>d</td><td>e</td></tr>
        <tr><td>a6</td><td>b</td><td>c</td><td>d</td><td>e</td></tr>
        <tr><td>a7</td><td>b</td><td>c</td><td>d</td><td>e</td></tr>
      </tbody>
   </table>
 </div>

Answer 2

如果我将其替换为CSS，它将起作用

.table-wrap table th, .table-wrap table td {
border: 1px solid black;
padding: 1px;
white-space: nowrap;

}

作者

.table-wrap table th {
position: sticky;
top: 3px;
border: 1px solid black;
background-color: white;
}

.table-wrap table td {
border: 1px solid black;
padding: 1px;
white-space: nowrap;
}

感谢@ JBDouble05，您的代码非常适合我

也感谢@Roko C. Buljan

thead固定且可滚动的页面（不是正文）

2 个答案: