我也遇到过同样的问题，这里有一个解决方法:

<table width="100%">
  <tr>
    <td><hr /></td>
    <td style="width:1px; padding: 0 10px; white-space: nowrap;">Some text</td>
    <td><hr /></td>
  </tr>
</table>​

它不需要在文本元素上设置背景，也就是说，不管后面是什么背景，它看起来都很好。

你可以在这里试试:http://jsfiddle.net/88vgS/

我做了一个小提琴，使用FlexBox，也会给你不同风格的HR(双线，符号在线的中心，阴影，插入，虚线等)。

CSS

button {
    padding: 8px;
    border-radius: 4px;
    background-color: #fff;
    border: 1px solid #ccc;
    margin: 2px;
  }

  button:hover {
    cursor: pointer;
  }

  button.active {
    background-color: rgb(34, 179, 247);
    color: #fff;
  }

  .codeBlock {
    display: none;
  }

  .htmlCode, .cssCode {
    background-color: rgba(34, 179, 247, 0.5); 
    width: 100%;
    padding: 10px;
  }

  .divider {
    display: flex;
    flex-direction: row;
    flex-flow: row;
    width: 100%;
  }

  .divider.fixed {
    width: 400px;
  }

  .divider > label {
    align-self: baseline;
    flex-grow: 2;
    white-space: nowrap;
  }

  .divider > hr {
    margin-top: 10px;
    width: 100%;
    border: 0;
    height: 1px;
    background: #666;
  }

  .divider.left > label {
    order: 1;
    padding-right: 5px;
  }

  .divider.left > hr {
    order: 2
  }

  .divider.right > label {
    padding-left: 5px;
  }
  /* hr bars with centered text */
  /* first HR in a centered version */

  .divider.center >:first-child {
    margin-right: 5px;
  }
  /* second HR in a centered version */

  .divider.center >:last-child {
    margin-left: 5px;
  }
  /** HR style variations **/

  hr.gradient {
    background: transparent;
    background-image: linear-gradient(to right, #f00, #333, #f00);
  }

  hr.gradient2 {
    background: transparent;
    background-image: linear-gradient(to right, rgba(0, 0, 0, 0), rgba(255, 0, 0, 0.5), rgba(0, 0, 0, 0));
  }

  hr.dashed {
    background: transparent;
    border: 0;
    border-top: 1px dashed #666;
  }

  hr.dropshadow {
    background: transparent;
    height: 12px;
    border: 0;
    box-shadow: inset 0 12px 12px -12px rgba(0, 0, 0, 0.5);
  }

  hr.blur {
    background: transparent;
    border: 0;
    height: 0;
    /* Firefox... */
    box-shadow: 0 0 10px 1px black;
  }

  hr.blur:after {
    background: transparent;
    /* Not really supposed to work, but does */
    content: "\00a0";
    /* Prevent margin collapse */
  }

  hr.inset {
    background: transparent;
    border: 0;
    height: 0;
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
  }

  hr.flared {
    background: transparent;
    overflow: visible;
    /* For IE */
    height: 30px;
    border-style: solid;
    border-color: black;
    border-width: 1px 0 0 0;
    border-radius: 20px;
  }

  hr.flared:before {
    background: transparent;
    display: block;
    content: "";
    height: 30px;
    margin-top: -31px;
    border-style: solid;
    border-color: black;
    border-width: 0 0 1px 0;
    border-radius: 20px;
  }

  hr.double {
    background: transparent;
    overflow: visible;
    /* For IE */
    padding: 0;
    border: none;
    border-top: medium double #333;
    color: #333;
    text-align: center;
  }

  hr.double:after {
    background: transparent;
    content: "§";
    display: inline-block;
    position: relative;
    top: -0.7em;
    font-size: 1.5em;
    padding: 0 0.25em;
  }

HTML

<div class="divider left">
  <hr />
  <label>Welcome!</label>
</div>
<p>&nbsp;</p>
<div class="divider right">
  <hr />
  <label>Welcome!</label>
</div>
<p>&nbsp;</p>
<div class="divider center">
  <hr />
  <label>Welcome!</label>
  <hr />
</div>
<p>&nbsp;</p>
<div class="divider left fixed">
  <hr />
  <label>Welcome!</label>
</div>
<p>&nbsp;</p>
<div class="divider right fixed">
  <hr />
  <label>Welcome!</label>
</div>
<p>&nbsp;</p>
<div class="divider center fixed">
  <hr />
  <label>Welcome!</label>
  <hr />
</div>

或者这里有一个交互式的Fiddle: http://jsfiddle.net/mpyszenj/439/

html

<div style="display: grid; grid-template-columns: 1fr 1fr 1fr;" class="add-heading">
    <hr class="add-hr">
    <h2>Add Employer</h2>
    <hr class="add-hr">
</div>

css

.add-hr { 
    display: block; height: 1px;
    border: 0; border-top: 4px solid #000;
    margin: 1em 0; padding: 0; 
  }

.add-heading h2{
  text-align: center;
}

你可以不需要<hr />就完成这个任务。从语义上讲，设计应该用CSS的手段来完成，在这种情况下是很有可能的。

div.header
{
  position: relative;
  text-align: center;
  padding: 0 10px;
  background: #ffffff;
}

div.line
{
  position: absolute;
  top: 50%;
  border-top: 1px dashed;
  z-index: -1;
}

<div class="header">
  Next section
  <div class="line">&nbsp;</div>
</div>

你可以用:before和:after来实现这一点，而不需要知道容器的宽度或背景颜色，使用它们可以使换行符具有更大的样式。例如，这可以修改为双线、虚线等。

JSFiddle

CSS和HTML用法:

.hr-sect { 显示:flex; flex-basis: 100%; 对齐项目:中心; 颜色:rgba(0,0,0,0.35); Margin: 8px 0px; ｝ .hr-sect:之前, .hr-sect:{后 内容:“”; flex-grow: 1; 背景:rgba(0,0,0,0.35); 身高:1 px; 字体大小:0 px; 行高:0 px; Margin: 0px 8px; ｝ < div class = " hr-sect”>类别< / div >

SCSS版本:

.hr-sect {
    display: flex;
    flex-basis: 100%;
    align-items: center;
    color: rgba(0, 0, 0, 0.35);
    margin: 8px 0;

    &:before, &:after {
        content: "";
        flex-grow: 1;
        background: rgba(0, 0, 0, 0.35);
        height: 1px;
        font-size: 0;
        line-height: 0;
        margin: 0 8px;
    }
}

与Bootstrap 4，这似乎是为我工作:

<div class=“row”> <div class=“col”><hr/></div> <div class=“col-auto”>Or</div> <div class=“col”><hr/></div> </div>