Question

我的要求：

在tr悬停时，tr将具有线性渐变背景，不仅是平坦的背景颜色。

td中的tr示例：

A  |  B  |  C  |  B  |  A

A darker --> C lighter

的jsfiddle：

https://jsfiddle.net/g7o84j43/

代码我尝试过：

HTML：

<table border="1px" width="100%" cellpadding="0px" cellspacing="0px">
<tr style="text-align:center">
    <td>A</td>
    <td>B</td>
    <td>C</td>
    <td>B</td>
    <td>A</td>
</tr>
<tr style="text-align:center">
    <td>A</td>
    <td>B</td>
    <td>C</td>
    <td>B</td>
    <td>A</td>
</tr>
</table>

CSS：

tr:hover
{
    background: -webkit-linear-gradient(left, rgba(255,0,0,0), rgba(255,0,0,1)); /* For Safari 5.1 to 6.0 */
    background: -o-linear-gradient(right, rgba(255,0,0,0), rgba(255,0,0,1)); /* For Opera 11.1 to 12.0 */
    background: -moz-linear-gradient(right, rgba(255,0,0,0), rgba(255,0,0,1)); /* For Firefox 3.6 to 15 */
    background: linear-gradient(to right, rgba(255,0,0,0), rgba(255,0,0,1)); /* Standard syntax (must be last) */
}

任何想法如何实现这一目标？

Answer 1

在tr上为hover设置渐变背景的最简单，最直接的解决方案是向其添加background-attachment: fixed。

＆＃13;

tr:hover {
  background: linear-gradient(to right, rgba(255, 0, 0, 1), rgba(255, 0, 0, 0), rgba(255, 0, 0, 1));
  background-attachment: fixed;
}

＆＃13;

<!-- prefix library included only to avoid vendor prefixes -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/prefixfree/1.0.7/prefixfree.min.js"></script>
<table border="1px" width="100%" cellpadding="0px" cellspacing="0px">
  <tr style="text-align:center">
    <td>A</td>
    <td>B</td>
    <td>C</td>
    <td>B</td>
    <td>A</td>
  </tr>
  <tr style="text-align:center">
    <td>A</td>
    <td>B</td>
    <td>C</td>
    <td>B</td>
    <td>A</td>
  </tr>
</table>

＆＃13;

这是一种在将鼠标悬停在行上时向行（tr）添加渐变背景的不同方法。在这种方法中，我们将渐变作为背景添加到table元素本身，然后将未覆盖状态覆盖为纯色（白色）。当tr悬停时，tr的背景设置为transparent，因此table背景会显示渐变。

＆＃13;

table {
  background: linear-gradient(to right, rgba(255, 0, 0, 0), rgba(255, 0, 0, 1));
}
tr {
  background: white;
}
tr:hover {
  background: transparent;
}

＆＃13;

<!-- prefix library included only to avoid vendor prefixes -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/prefixfree/1.0.7/prefixfree.min.js"></script>
<table border="1px" width="100%" cellpadding="0px" cellspacing="0px">
  <tr style="text-align:center">
    <td>A</td>
    <td>B</td>
    <td>C</td>
    <td>B</td>
    <td>A</td>
  </tr>
  <tr style="text-align:center">
    <td>A</td>
    <td>B</td>
    <td>C</td>
    <td>B</td>
    <td>A</td>
  </tr>
</table>

＆＃13;

如果较浅的颜色需要位于中心，则可以修改渐变，如下面的代码段所示：

＆＃13;

table {
  background: linear-gradient(to right, rgba(255, 0, 0, 1), rgba(255, 0, 0, 0), rgba(255, 0, 0, 1));
}
tr {
  background: white;
}
tr:hover {
  background: transparent;
}

＆＃13;

<!-- prefix library included only to avoid vendor prefixes -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/prefixfree/1.0.7/prefixfree.min.js"></script>
<table border="1px" width="100%" cellpadding="0px" cellspacing="0px">
  <tr style="text-align:center">
    <td>A</td>
    <td>B</td>
    <td>C</td>
    <td>B</td>
    <td>A</td>
  </tr>
  <tr style="text-align:center">
    <td>A</td>
    <td>B</td>
    <td>C</td>
    <td>B</td>
    <td>A</td>
  </tr>
</table>

＆＃13;

Answer 2

也许不是最好的解决方案，但也许对你来说足够好，而且它也在Chrome中工作。 DEMO

<强> HTML：

<div class="table-wrapper">
    <table>
        ...
    </table>
</div>

<强> CSS：

/* To hide the overflow */
.table-wrapper{
    position: relative;
    overflow: hidden;
}

tr{
    position: relative;
}

/* Making the background with :before pseudo-element */

tr:before
{
    position: absolute;
    content: "";
    width: 100%;
    height: 20px;
    z-index: -1;
}

tr:hover:before
{
    background: -webkit-linear-gradient(left, rgba(255,0,0,0), rgba(255,0,0,1)); /* For Safari 5.1 to 6.0 */
    background: -o-linear-gradient(right, rgba(255,0,0,0), rgba(255,0,0,1)); /* For Opera 11.1 to 12.0 */
    background: -moz-linear-gradient(right, rgba(255,0,0,0), rgba(255,0,0,1)); /* For Firefox 3.6 to 15 */
    background: linear-gradient(to right, rgba(255,0,0,0), rgba(255,0,0,1)); /* Standard syntax (must be last) */
}

表tr背景渐变在使用CSS的悬停

2 个答案: