html - How to rotate a <div> 90 degrees?

Question

I have a <div> that I want to rotate 90 degrees:

<div id="container_2"></div>

How can I do this?

Answer 1

You need CSS to achieve this, e.g.:

#container_2 {
    -webkit-transform: rotate(90deg);
    -moz-transform: rotate(90deg);
    -o-transform: rotate(90deg);
    -ms-transform: rotate(90deg);
    transform: rotate(90deg);
}

Demo:

#container_2 {
  width: 100px;
  height: 100px;
  border: 1px solid red;
  -webkit-transform: rotate(45deg);
  -moz-transform: rotate(45deg);
  -o-transform: rotate(45deg);
  -ms-transform: rotate(45deg);
  transform: rotate(45deg);
}

<div id="container_2"></div>