HTML
<div class="skew"></div>
CSS
.skew {
width: 100px;
height: 100px;
background: teal;
transform: skew(20deg, -30deg);
}
This example will skew the div by 20 degrees on the X axis and by - 30 degrees on the Y axis.
The center of the transform is in the center of the div, 50%
from left and 50%
from top.
See the result here.