user5842084
user5842084

Reputation: 105

center text inside rotated div

I'm trying to center a heading both vertically and horizontally inside a div that is rotated 45deg (transform:rotate(45deg);). Because the div is rotated - I rotate the heading the opposite direction (transform:rotate(-45deg);) and then apply regular centering techniques which doesn't work. What is the solution for this?

#wrap {
	position: relative;
	transform: rotate(45deg);
	top: 150px;
	background-color: blue; 
	height: 300px;
	width: 300px;
	margin:0 auto;
}

h1 {
    position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%);
	transform: rotate(-45deg);
}
<html>
  <body>
    <div id="wrap"><h1>some centered text</h1></div>
  </body>
</html>

Upvotes: 3

Views: 656

Answers (5)

Nick
Nick

Reputation: 3281

You can achieve this by encapsulating your h1 in another div

#wrap {
  position: relative;
  transform: rotate(45deg);
  top: 150px;
  background-color: blue;
  height: 300px;
  width: 300px;
  margin: 0 auto;
}
#text {
  position: absolute;
  height: 300px;
  width: 300px;
  transform: translate(-50%, -50%);
  transform: rotate(-45deg);
  background-color: red;
}
h1 {
  text-align: center;
  line-height: 300px;
  margin: 0; /* H1 has default margin, read more: https://www.w3.org/TR/html-markup/h1.html *
}
<html>

<body>
  <div id="wrap">
    <div id="text">
      <h1>some centered text</h1>
    </div>
  </div>
</body>

</html>

Upvotes: 1

Fabrizio Calderan
Fabrizio Calderan

Reputation: 123387

In your h1 element you defined this style

h1 {
    ...
    transform: translate(-50%, -50%);
    transform: rotate(-45deg);
}

you're overriding the first transform property with the rotate() and doing so you're losing the centering effect obtained by the negative translate(): you should chain instead the two transformation like so

h1 {
    position: absolute;
    top: 50%;
    left: 50%;
    margin: 0;
    transform: translate(-50%, -50%) rotate(-45deg);
}

You should also remove the default margin applied on the h1 element (edit the demo and see what happens without margin: 0;)

Example: http://codepen.io/anon/pen/jWjxeW?editors=1100

Upvotes: 1

Matthew Lymer
Matthew Lymer

Reputation: 977

If you're happy to fix the height/width of your h1 elements, something like this will do it:

h1 {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: rotate(-45deg);
    height: 120px;
    line-height: 40px;
    width: 150px;
    margin-top: -60px;
    text-align: center;
    margin-left: -75px;
}

Upvotes: -1

sglazkov
sglazkov

Reputation: 1066

use this transform: translate(-50%, -50%) rotate(-45deg);

#wrap {
	position: relative;
	transform: rotate(45deg);
	top: 150px;
	background-color: blue; 
	height: 300px;
	width: 300px;
	margin:0 auto;
}

h1 {
    position: absolute;
	top: 50%;
	left: 50%;
	transform: translate(-50%, -50%) rotate(-45deg);
}
<html>
  <body>
    <div id="wrap"><h1>some centered text</h1></div>
  </body>
</html>

Upvotes: 1

WinK-
WinK-

Reputation: 402

You should write one transform function right after another
I made a small change in your css, also added text-align: center;

transform: rotate(-45deg) translate(0, -100%);

#wrap {
	position: relative;
	transform: rotate(45deg);
	top: 150px;
	background-color: blue; 
	height: 300px;
	width: 300px;
	margin:0 auto;
}

h1 {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: rotate(-45deg) translate(0, -100%);
    text-align: center;
}
<html>
  <body>
    <div id="wrap"><h1>some centered text</h1></div>
  </body>
</html>

Upvotes: 1

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