Center div on the middle of screen [duplicate]

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 5  1996

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盖世英雄少女心

2021-01-30 08:56

The best way to align a div in center both horizontally and vertically will be

HTML

<div></div>

CSS:

div {
    position: absolute;
    top:0;
    bottom: 0;
    left: 0;
    right: 0;
    margin: auto;
    width: 100px;
    height: 100px;
    background-color: blue;
}

FIDDLE

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时光取名叫无心

2021-01-30 09:05

Your code is correct you just used .div instead of div

HTML

<div class="ui grid container">
<div class="ui center aligned three column grid">
  <div class="column">
  </div>
  <div class="column">
    </div>
  </div>

CSS

div{
position: absolute;
top: 50%;
left: 50%;
margin-top: -50px;
margin-left: -50px;
width: 100px;
height: 100px;
}

Check out this Fiddle

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野趣味

2021-01-30 09:15
Try this:
```
 div{
    position: absolute;
    top: 50%;
    left: 50%;
    margin-top: -50px;
    margin-left: -50px;
    width: 100px;
    height: 100px;
    background: red;
}
```
Here div is html tag. You wrote a html tag followed by a dot that is wrong.Only a class is written followed by dot.
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醉梦人生

2021-01-30 09:16
This should work with any div or screen size:
```
.center-screen {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  min-height: 100vh;
}
```
```
 <html>
 <head>
 </head>
 <body>
 <div class="center-screen">
 I'm in the center
 </div>
 </body>
 </html>
```
See more details about flex here. This should work on most of the browsers, see compatibility matrix here.

Update: If you don't want the scroll bar, make min-height smaller, for example min-height: 95vh;
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滥情空心

2021-01-30 09:20
2018: CSS3
```
div{
    position: absolute;
    top: 50%;
    left: 50%;
    margin-right: -50%;
    transform: translate(-50%, -50%);
}
```
This is even shorter. For more information see this: CSS: Centering Things
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