如果你正在使用React与样式组件。我发现分离元素更简单。不是“神奇的解决方案”，但它确实有效。

import React from 'react';
import styled from "@emotion/styled";

const Container = styled.div`
  padding-top: 210px;
  padding-left: 50px;  
  display: inline-flex;
`

const Title1 = styled.div`
  position: absolute;
  font-size: 25px;
  left:40px;
  color: white;
  margin-top: -17px;
  padding-left: 40px;
`

const Title2 = styled.div`
  position: absolute;
  font-size: 25px;
  left:1090px;
  color: white;
  margin-top: -17px;
  padding-left: 40px;
`

const Line1 = styled.div`
  width: 20px;
  border: solid darkgray 1px;
  margin-right: 90px;
`
const Line2 = styled.div`
  width: 810px;
  border: solid darkgray 1px;
  margin-right: 126px;
`
const Line3 = styled.div`
  width: 178px;
  border: solid darkgray 1px;
`


const Titulos = () => {
    return (
        <Container>
            <Line1/>
            <Title1>
                FEATURED
            </Title1>
            <Line2/>
            <Line1/>
            <Title2>
                EXCLUSIVE
            </Title2>
            <Line3/>
        </Container>
    );
};

export default Titulos;

结果:

这段代码将正常工作:

/* پخش زنده*/ .div-live { text-align:中心; ｝ .span-live { 显示:inline-block; 颜色:# b5b5b5; ｝ .span-live:之前, .span-live:{后 Border-top: 1px solid #b5b5b5; 显示:块; 身高:1 px; 内容:“”; 宽度:30%; 位置:绝对的; 左:0; 上图:3快速眼动; ｝ .span-live:{后 右:0; 左:汽车; ｝ < div class = " div-live”> <span class="span-live">پخش زنده</span> < / div >

h6 {
    font: 14px sans-serif;
    margin-top: 20px;
    text-align: center;
    text-transform: uppercase;
    font-weight: 900;
}

    h6.background {
        position: relative;
        z-index: 1;
        margin-top: 0%;
        width:85%;
        margin-left:6%;
    }

        h6.background span {
            background: #fff;
            padding: 0 15px;
        }

        h6.background:before {
            border-top: 2px solid #dfdfdf;
            content: "";
            margin: 0 auto; /* this centers the line to the full width specified */
            position: absolute; /* positioning must be absolute here, and relative positioning must be applied to the parent */
            top: 50%;
            left: 0;
            right: 0;
            bottom: 0;
            width: 95%;
            z-index: -1;
        }

这对你有帮助

使用Bootstrap 4预定义类

<div class="row align-items-center">
  <div class="col dropdown-divider"></div>
  <div class="col-auto">OR</div>
  <div class="col dropdown-divider"></div>
</div>

好吧，这个更复杂，但它适用于所有浏览器，除了IE<8

<div><span>text TEXT</span></div>

div {
    text-align: center;
    position: relative;
}
span {
    display: inline-block;    
}
span:before,
span:after {
    border-top: 1px solid black;
    display: block;
    height: 1px;
    content: " ";
    width: 40%;
    position: absolute;
    left: 0;
    top: 1.2em;
}
span:after {
   right: 0;  
   left: auto; 
}

:before和:after元素的位置是绝对的，因此我们可以将一个元素拉到左边，一个元素拉到右边。此外，宽度(在本例中为40%)非常依赖于内部文本的宽度。我得想个解决办法。至少在顶部:1.2em可以确保即使字体大小不同，线条也或多或少地保持在文本的中心。

它似乎工作得很好:http://jsfiddle.net/tUGrf/3/

透明的单元素动态解决方案:

h2 { display:table; /* fit content width*/ margin:20px auto; /* center*/ padding:0 10px; /* control the space between the text and the line */ box-shadow:0 0 0 100px red; /* control the line length and color here */ --s:2px; /* control the line thickness*/ clip-path: polygon(0 0,100% 0, 99% calc(50% - var(--s)/2), 200vmax calc(50% - var(--s)/2), 200vmax calc(50% + var(--s)/2), 99% calc(50% + var(--s)/2), 100% 100%,0 100%, 1px calc(50% + var(--s)/2), -200vmax calc(50% + var(--s)/2), -200vmax calc(50% - var(--s)/2), 1px calc(50% - var(--s)/2)); } body { background: pink; } <h2>a Title here </h2> <h2 style="box-shadow:0 0 0 100vmax blue;">Title</h2> <h2 style="box-shadow:0 0 0 200px green;--s:5px">Another title Title</h2>