用上边距修复底部的 div [重复]答案

【问题标题】：Fix div in bottom with a top-margin [duplicate]用上边距修复底部的 div [重复]
【发布时间】：2021-06-22 22:58:36
【问题描述】：

我正在尝试在底部创建一个联系人/信息 div（如本网页底部的灰色区域）。

我的 HTML 如下：

*{margin:0;
padding:0;
box-sizing: border-box;}


body{
    padding-bottom: 0;
}

body .main{
    margin-bottom: 10vh;
}

body p{
    font-size:medium;
}

h1{
    font-size: x-large;
}

#contact-info{
    width:100%;
}

#contact-body{   
    background-color: rgb(94, 94, 91);
    color: #fff;
    margin: 0 auto;
    width: 100%;
}


table td{
    font-size: small;
    white-space: nowrap;
}

<body>
  <div class="main">
    <legend class="border-bottom">
      <h1> Who are we?</h1>
    </legend>

    <p>
        Som text
    </p>
  </div>
  
  <div id="contact-body">
    <div id="contact-info">
      <table style="table-layout:fixed;">
        <tr>
          <th>Email</th>
  
        </tr>
        <tr>
          <td>info@email.com</td>
  
        </tr>
      </table>
    </div>
  
  </div>
</body>

我尝试了几种方法；设置display:absolute（在body 上使用dispaly:relative）但是这使得contact-body 和main 在横向模式下重叠。为contact-body 设置上边距并不能解决问题。

如果我删除display:absolute，则 div 会在中间浮动，下方有一些间距。我在contact-body 和body 上尝试过margin-bottom:0,padding-bottom:0，但没有任何效果。

如何在底部创建这样一个跨越宽度并为上面的 div 保持一定边距（比如 1vh）的联系人/信息？

【问题讨论】：

标签： html css

【解决方案1】：

您可以将position: fixed 和bottom: 0 添加到div#contact-body。使其固定在页面底部。如果您想修复任何其他 HTML 元素，请尝试将 position 和 bottom 添加到该元素。但这会将其永久固定在底部

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  padding-bottom: 0;
}

body .main {
  margin-bottom: 10vh;
}

body p {
  font-size: medium;
}

h1 {
  font-size: x-large;
}

#contact-info {
  width: 100%;
}

#contact-body {
  background-color: rgb(94, 94, 91);
  color: #fff;
  margin: 0 auto;
  width: 100%;
  position: fixed;
  bottom: 0;
}

table td {
  font-size: small;
  white-space: nowrap;
}

<div class="main">
  <legend class="border-bottom">
    <h1> Who are we?</h1>
  </legend>

  <p>
    Som text
  </p>
</div>

<div id="contact-body">
  <div id="contact-info">
    <table style="table-layout:fixed;">
      <tr>
        <th>Email</th>

      </tr>
      <tr>
        <td>info@email.com</td>

      </tr>
    </table>
  </div>

</div>

【讨论】：

问题是，它不应该被固定 - 它应该在底部（如position:absolute，但有一个上边距

【解决方案2】：

希望对您有所帮助，请考虑使用语义标签，以便每个人都可以访问您的网站

* {
  margin: 0;
  padding: 0;
}
main {
  margin-bottom: 4rem;
}

footer {
  position: fixed;
  bottom: 0;
  background-color: gray;
  width: 100vw;
  height: 3rem;
  /* extra */
  padding: 0 1rem;
  display: flex;
  align-items: center;
  /* debug */
  border: 2px dashed;
}

<html>
<body>
  <main>
    <p>What is Lorem Ipsum?
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Why do we use it?
It is a long established fact that a reader will be distracted by the readable content of a page when looking at its layout. The point of using Lorem Ipsum is that it has a more-or-less normal distribution of letters, as opposed to using 'Content here, content here', making it look like readable English. Many desktop publishing packages and web page editors now use Lorem Ipsum as their default model text, and a search for 'lorem ipsum' will uncover many web sites still in their infancy. Various versions have evolved over the years, sometimes by accident, sometimes on purpose (injected humour and the like).


Where does it come from?
Contrary to popular belief, Lorem Ipsum is not simply random text. It has roots in a piece of classical Latin literature from 45 BC, making it over 2000 years old. Richard McClintock, a Latin professor at Hampden-Sydney College in Virginia, looked up one of the more obscure Latin words, consectetur, from a Lorem Ipsum passage, and going through the cites of the word in classical literature, discovered the undoubtable source. Lorem Ipsum comes from sections 1.10.32 and 1.10.33 of "de Finibus Bonorum et Malorum" (The Extremes of Good and Evil) by Cicero, written in 45 BC. This book is a treatise on the theory of ethics, very popular during the Renaissance. The first line of Lorem Ipsum, "Lorem ipsum dolor sit amet..", comes from a line in section 1.10.32.

The standard chunk of Lorem Ipsum used since the 1500s is reproduced below for those interested. Sections 1.10.32 and 1.10.33 from "de Finibus Bonorum et Malorum" by Cicero are also reproduced in their exact original form, accompanied by English versions from the 1914 translation by H. Rackham.

Where can I get some?
There are many variations of passages of Lorem Ipsum available, but the majority have suffered alteration in some form, by injected humour, or randomised words which don't look even slightly believable. If you are going to use a passage of Lorem Ipsum, you need to be sure there isn't anything embarrassing hidden in the middle of text. All the Lorem Ipsum generators on the Internet tend to repeat predefined chunks as necessary, making this the first true generator on the Internet. It uses a dictionary of over 200 Latin words, combined with a handful of model sentence structures, to generate Lorem Ipsum which looks reasonable. The generated Lorem Ipsum is therefore always free from repetition, injected humour, or non-characteristic words etc.</p>
  </main>
  <footer>
    <address>
      <a href="mailto:jim@rock.com">jim@rock.com</a><br>
      <a href="tel:+13115552368">(311) 555-2368</a>
    </address>
  </footer>
</body>
</html>

【讨论】：