Check out example codes for "css transform property". It will help you in understanding the concepts better.

Code Example 1

.selector {
  transform: scale(1.2); // Will upscale to 1.2
}

Code Example 2

transform: matrix(1, 2, 3, 4, 5, 6);
transform: matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1);
transform: translate(120px, 50%);
transform: scale(2, 0.5);
transform: rotate(0.5turn);
transform: skew(30deg, 20deg);
transform: scale(0.5) translate(-100%, -100%);
transform: perspective(17px);

Code Example 3

Read this comprehensive article about CSS animation transform property. 
It also has many useful examples that help you in best way.

https://medium.com/swlh/learn-css-transform-animation-zero-to-hero-6a2a643bd56b

Code Example 4

<!DOCTYPE html>
<html>
<head>
<style> 
div.a {
  width: 150px;
  height: 80px;
  background-color: yellow;
  -ms-transform: rotate(20deg); /* IE 9 */
  transform: rotate(20deg);
}

div.b {
  width: 150px;
  height: 80px;
  background-color: yellow;
  -ms-transform: skewY(20deg); /* IE 9 */
  transform: skewY(20deg);
}

div.c {
  width: 150px;
  height: 80px;
  background-color: yellow;
  -ms-transform: scaleY(1.5); /* IE 9 */
  transform: scaleY(1.5);
}
</style>
</head>
<body>

<h1>The transform Property</h1>

<h2>transform: rotate(20deg):</h2>
<div class="a">Hello World!</div>
<br>

<h2>transform: skewY(20deg):</h2>
<div class="b">Hello World!</div>
<br>

<h2>transform: scaleY(1.5):</h2>
<div class="c">Hello World!</div>

</body>
</html>

Code Example 5

transform: scale(sx,sy);

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