Vertically centering a div in body?

2020-02-08 07:25发布

站内问答 / HTML/CSS
551 5 3

I have tried to center this vertically in body (not horizontally). Also, I do not want to specify heights or anything like that. I tried adding a wrapper with a 100% height and other things, but got nowhere. Can you please help me fix this?

jsFiddle Here

 <form name="signup" class="signup" action="signup.php" style="border: 1px solid #000; ">
     <input type="text" placeholder="Email"/><br>
     <input type="text" placeholder="Username"/><br>
     <input type="password" placeholder="Password"/><br>
     <button type="submit">Next</button>
 </form>​

5条回答
▲ chillily
2楼-- · 2020-02-08 08:03

Update: codepen.io

form {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%); /* IE 9 */
    -webkit-transform: translate(-50%, -50%); /* Chrome, Safari, Opera */	    
}
<form name="signup" class="signup" action="signup.php" style="border: 1px solid #000; ">
     <input type="text" placeholder="Email"/><br>
     <input type="text" placeholder="Username"/><br>
     <input type="password" placeholder="Password"/><br>
     <button type="submit">Next</button>
 </form>​

Related: Center a div in body

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闹够了就滚
3楼-- · 2020-02-08 08:03

If you have flexbox available, you can do it without using display: table;

Code example:

html,
body {
  height: 100%;
  width: 100%;
}

.container {
  align-items: center;
  display: flex;
  justify-content: center;
  height: 100%;
  width: 100%;
}
<html>
  <body>
    <div class="container">
      <div class="content">
        This div will be centered
      </div>
    </div>
  </body>
</html>

Ta-da! Vertically and horizontally centered content div. JSFiddle: https://jsfiddle.net/z0g0htm5/.

Taken mostly from https://philipwalton.github.io/solved-by-flexbox/demos/vertical-centering/ and https://css-tricks.com/snippets/css/a-guide-to-flexbox/

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Evening l夕情丶
4楼-- · 2020-02-08 08:08

See this edited version of your jsFiddle.

Basically, just wrap your content in <div class = "main"><div class = "wrapper"></div></div>, and add the following CSS:

html, body {
    height: 100%;
}
.main {
    height: 100%;
    width: 100%;
    display: table;
}
.wrapper {
    display: table-cell;
    height: 100%;
    vertical-align: middle;
}
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Juvenile、少年°
5楼-- · 2020-02-08 08:16

A JSFiddle example with table warp

In the above solution, Provide css for html & body with "height: 100%" and then wrap the form that to be centered around a table.

Code sample 

<html>
<body>    
<table height="100%" width="100%" border="1">
    <tr>
    <td>
    <form name="signup" class="signup" action="signup.php" style="border: 1px solid #000; ">

                <input type="text" placeholder="Email"/><br>

                <input type="text" placeholder="Username"/><br>

                <input type="password" placeholder="Password"/><br>

                <button type="submit">Next</button>

            </form>
        </td>
        </tr>
</table>    
</body>
</html>

​

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疯言疯语
6楼-- · 2020-02-08 08:24

this worked for me:

Style.css

div {
    position: relative;
    top: 50%;
    transform: translateY(-50%);
}

I found this code snippet here.

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