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CSS合并单元格四种方式示例介绍(table/display/flex/grid)

2024-02-29 | 佚名 | 点击:

效果图:

方式一:table【最简单写法】

通过table的colspan和rowspan轻松实现单元格合并。

边框设置:th/td 加右下边框,table加左上边框。

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<!--html-->

<table border="0" cellspacing="0" cellpadding="0">

  <tr>

    <th style="width: 100px;">种类</th>

    <th style="width: 100px;">名称</th>

    <th>描述</th>

  </tr>

  <tr>

    <td rowspan="2">水果</td>

    <td>香蕉</td>

    <td>香蕉(学名:Musa nana Lour.)是芭蕉科、芭蕉属植物。植株丛生,具匐匍茎,矮型的高3.5米以下,一般高不及2米...</td>

  </tr>

  <tr>

    <td>苹果</td>

    <td>苹果(Malus pumila Mill.),是落叶乔木,通常树木可高至15米,但栽培树木一般只高3-5米左右...</td>

  </tr>

  <tr>

    <td colspan="2">其他</td>

    <td>--</td>

  </tr>

</table>

<!--css-->

<style>

  table {

    width: 600px;

    table-layout: fixed;

    border-left: 1px solid #ddd;

    border-top: 1px solid #ddd;

  }

  th, td {

    border-right: 1px solid #ddd;

    border-bottom: 1px solid #ddd;

    vertical-align: middle;

    text-align: center;

    padding: 12px 0;

    color: #666;

    font-size: 14px;

  }

  th {

    font-weight: normal;

  }

</style>

方式二:display: table--不推荐

外层div.distable设置样式display: table;

内层div.distable-cell*设置样式display: table-cell;

table布局下,可以实现合并单元格效果。有两点说明:

1)为合并单元格的行 设置边框时,比较复杂,容易错位。

2)浏览器缩放到200+%展示时,此布局会变形。

因此,这种写法并不推荐。

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<div>

    <div class="distable border-sub-rb border-lt">

        <div class="distable-cell1">种类</div>

        <div class="distable-cell1">名称</div>

        <div class="distable-cell2">描述</div>

    </div>

    <div class="distable border-l">

        <div class="distable-cell1 border-rb" style="background-color: #ddd;border-color: red">水果</div>

        <div class="distable-cell3">

            <div class="distable border-sub-rb">

                <div class="distable-cell1">香蕉</div>

                <div class="distable-cell2">香蕉(学名:Musa nana Lour.)是芭蕉科、芭蕉属植物。植株丛生,具匐匍茎,矮型的高3.5米以下,一般高不及2米...</div>

            </div>

            <div class="distable border-sub-rb">

                <div class="distable-cell1">苹果</div>

                <div class="distable-cell2">苹果(Malus pumila Mill.),是落叶乔木,通常树木可高至15米,但栽培树木一般只高3-5米左右...</div>

            </div>

        </div>

    </div>

    <div class="distable border-r">

        <div class="distable-cell4 border-lb">其他</div>

        <div class="distable-cell2 border-bl" style="background-color: #ddd;border-color: red">--</div>

    </div>

</div>

<style>

    .distable {

        display: table;

        color: #666;

        font-size: 14px;

        box-sizing: border-box;

    }

    [class*=distable-cell] {

        display: table-cell;

        text-align: center;

        vertical-align: middle;

        box-sizing: border-box;

    }

    .distable-cell1 {

        width: 100px;

    }

    .distable-cell2 {

        width: 400px;

        padding: 12px 0;

    }

    .distable-cell3 {

        width: 500px;

    }

    .distable-cell4 {

        width: 200px;

    }

    .border-sub-rb [class*=distable-cell] {

        border-right: 1px solid #ddd;

        border-bottom: 1px solid #ddd;

        padding: 12px 0;

    }

    .border-lt {

        border-left: 1px solid #ddd;

        border-top: 1px solid #ddd;

    }

    .border-lb {

        border-left: 1px solid #ddd;

        border-bottom: 1px solid #ddd;

    }

    .border-l {

        border-left: 1px solid #ddd;

    }

    .border-rb {

        border-right: 1px solid #ddd;

        border-bottom: 1px solid #ddd;

    }

    .border-bl {

        border-bottom: 1px solid #ddd;

        border-left: 1px solid #ddd;

    }

    .border-r {

        border-right: 1px solid #ddd;

    }

</style>

方式三:display: flex

flex布局下,可以实现合并单元格效果。有两个难点:

1)合并单元格的垂直居中效果:flex布局嵌套,内层的flex设置align-items: center;

2)边框的设置:设置比较复杂,容易错位。

虽然可以实现合并单元格效果,并不推荐。

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<div style="width: 600px;">

    <div class="flex-box border-sub-rb border-lt">

        <div class="flex-cell1">种类</div>

        <div class="flex-cell1">名称</div>

        <div class="flex-cell2">描述</div>

    </div>

    <div class="flex-box border-l">

        <div class="flex-cell1 border-b flex-cc" style="background-color: #ddd;border-color: red"><div>水果</div></div>

        <div class="flex-cell3 border-r">

            <div class="flex-box border-sub-bl">

                <div class="flex-cell1 flex-cc"><div>香蕉</div></div>

                <div class="flex-cell2 flex-cc" style="background-color: #ddd;border-color: red"><div>香蕉(学名:Musa nana Lour.)是芭蕉科、芭蕉属植物。植株丛生,具匐匍茎,矮型的高3.5米以下,一般高不及2米...</div></div>

            </div>

            <div class="flex-box border-sub-bl">

                <div class="flex-cell1 flex-cc"><div>苹果</div></div>

                <div class="flex-cell2 flex-cc"><div>苹果(Malus pumila Mill.),是落叶乔木,通常树木可高至15米,但栽培树木一般只高3-5米左右...</div></div>

            </div>

        </div>

    </div>

    <div class="flex-box">

        <div class="flex-cell4 border-lb flex-cc"><div>其他</div></div>

        <div class="flex-cell2 border-rbl flex-cc" style="background-color: #ddd;border-color: red"><div>--</div></div>

    </div>

</div>

<style>

    .flex-box {

        display: flex;

        flex-direction: row;

        flex-wrap: nowrap;

        color: #666;

        font-size: 14px;

        text-align: center;

        box-sizing: border-box;

    }

    [class*=flex-cell] {

        box-sizing: border-box;

    }

    .flex-cell1 {

        width: 100px;

    }

    .flex-cell2 {

        width: 400px;

        padding: 12px 0;

    }

    .flex-cell3 {

        width: 500px;

    }

    .flex-cell4 {

        width: 200px;

    }

    .border-sub-rb [class*=flex-cell] {

        border-right: 1px solid #ddd;

        border-bottom: 1px solid #ddd;

        padding: 12px 0;

    }

    .border-sub-bl [class*=flex-cell] {

        border-bottom: 1px solid #ddd;

        border-left: 1px solid #ddd;

    }

    .border-lt {

        border-left: 1px solid #ddd;

        border-top: 1px solid #ddd;

    }

    .border-lb {

        border-left: 1px solid #ddd;

        border-bottom: 1px solid #ddd;

    }

    .border-l {

        border-left: 1px solid #ddd;

    }

    .border-rbl {

        border-right: 1px solid #ddd;

        border-bottom: 1px solid #ddd;

        border-left: 1px solid #ddd;

    }

    .border-b {

        border-bottom: 1px solid #ddd;

    }

    .border-r {

        border-right: 1px solid #ddd;

    }

    .flex-cc {

        display: flex;

        flex-direction: row;

        flex-wrap: nowrap;

        justify-content: center;

        align-items: center;

    }

</style>

方式四:display: grid

grid布局学习成本会高一些,但代码看着最清晰。

grid有兼容性问题,谨慎使用。

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<div class="container">

      <div class="item item-1"><div>种类</div></div>

      <div class="item item-2"><div>名称</div></div>

      <div class="item item-3"><div>描述</div></div>

      <div class="item item-4"><div>水果</div></div>

      <div class="item item-5"><div>香蕉</div></div>

      <div class="item item-6"><div>香蕉(学名:Musa nana Lour.)是芭蕉科、芭蕉属植物。植株丛生,具匐匍茎,矮型的高3.5米以下,一般高不及2米...</div></div>

      <div class="item item-7"><div>苹果</div></div>

      <div class="item item-8"><div>苹果(Malus pumila Mill.),是落叶乔木,通常树木可高至15米,但栽培树木一般只高3-5米左右...</div></div>

      <div class="item item-9"><div>其他</div></div>

      <div class="item item-10"><div>--</div></div>

</div>

<style>

  .container {

    display: grid;

    grid-template-columns: repeat(6, 100px);

    color: #666;

    font-size: 14px;

    border-left: 1px solid #ddd;

    border-top: 1px solid #ddd;

  }

  .item {

    border-right: 1px solid #ddd;

    border-bottom: 1px solid #ddd;

    text-align: center;

    padding: 12px 0;

    display: grid;

    align-items: center;

  }

  .item-1 {

    grid-column: 1 / 2;

  }

  .item-2 {

    grid-column: 2 / 3;

  }

  .item-3 {

    grid-column: 3 / 7;

  }

  .item-4  {

    grid-row: 2 / 4

  }

  .item-6 {

    grid-column: 3 / 7;

  }

  .item-8 {

    grid-column: 3 / 7;

  }

  .item-9 {

    grid-column: 1 / 3;

  }

  .item-10 {

    grid-column-end: span 4;

  }

</style>

总结:

table布局仍是实现合并单元格最简单的方式,grid次之,flex再次,display:table不推荐。

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