heading with horizontal line on either side [duplicate]

问题

This question already has an answer here:

Line before and after title over image [duplicate] 2 answers

I am working on some CSS where the design calls for page titles (headings) to be centered with horizontal lines that are vertically centered on either side. Further, there is a background image on the page so the background of the title needs to be transparent.

I have centered the title and I can use pseudo class to create the line. But I need the line disappear when it cross the text of the title.

I considered using a background gradient that goes transparent where the words are, but since each title could be a different length, I wouldn\'t know where to put the stops.

Here is the CSS so far:

h1 {  
    text-align: center;  
    position: relative;  
    font-size: 30px;  
    z-index: 1;  
}  

h1:after {  
    content: \'\';  
    background-color: red;  
    height: 1px;  
    display: block;  
    position: absolute;  
    top: 18px;  
    left: 0;  
    width: 100%;  
}

Here is where I\'m at: http://jsfiddle.net/XWVxk/1/

Can this be done with CSS without adding any extra HTML?

回答1:

Look at this http://blog.goetter.fr/post/36084887039/tes-pas-cap-premiere-edition , here is your answer.

Here is your original code modified

h1 {
    position: relative;
    font-size: 30px;
    z-index: 1;
    overflow: hidden;
    text-align: center;
}
h1:before, h1:after {
    position: absolute;
    top: 51%;
    overflow: hidden;
    width: 50%;
    height: 1px;
    content: '\a0';
    background-color: red;
}
h1:before {
    margin-left: -50%;
    text-align: right;
}
.color {
    background-color: #ccc;
}

<h1>This is my Title</h1>
<h1>Another Similar Title</h1>
<div class="color"><h1>Just Title</h1></div>

Note: the article is not online anymore, here is the last good archived version: http://web.archive.org/web/20140213165403/http://blog.goetter.fr/post/36084887039/tes-pas-cap-premiere-edition

回答2:

needed this a few days ago, but the accepted answer isn't working in IE.

this is what I came up with: works in every major browser (>= ie8)

jsfiddle: http://jsfiddle.net/gKve7/

HTML:

<h2 class="decorated"><span>My Title</span></h2>

CSS:

/* headlines with lines */
.decorated{
     overflow: hidden;
     text-align: center;
 }
.decorated > span{
    position: relative;
    display: inline-block;
}
.decorated > span:before, .decorated > span:after{
    content: '';
    position: absolute;
    top: 50%;
    border-bottom: 2px solid;
    width: 592px; /* half of limiter */
    margin: 0 20px;
}
.decorated > span:before{
    right: 100%;
}
.decorated > span:after{
    left: 100%;
}

回答3:

This might work:

.floatClear {
  clear: both;
}
#wrapper {
  text-align: center;
  position: relative;
}
#wrapper .line {
  border-bottom: 2px solid red;
  position: absolute;
  width: 100%;
  top: 15px;
}
#wrapper .textbox {
  position: absolute;
  width: 100%;
}
#wrapper .textbox .text {
  background-color: white;
  margin: 0px auto;
  padding: 0px 10px;
  text-align: center;
  display: inline;
  font-size: 24px;
}

<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="utf-8">
  <title>HTML</title>
  <link rel="stylesheet" href="main.css" type="text/css" />
</head>

<body>
  <div id="wrapper">
    <div class="line"></div>
    <div class="textbox">
      <div class="text">This is my Title</div>
    </div>
  </div>
</body>

</html>

What happens here is you set the text over the line the background and with the background-color plus the side padding so it will hide the line behind the text block.

来源：https://stackoverflow.com/questions/15557627/heading-with-horizontal-line-on-either-side

标签

html

css

pseudo-class