CSS Text-Shaking Animation Effect With Code

The CSS-code makes use of the transform: skewX style six times in total, rapidly transforming the text back and forth in the degrees specified. See the CodePen below for yourself.

html, body {
  height: 100%;
  margin: 0;

body {
  display: flex;
  justify-content: center;
  align-items: center;
  font-family: 'Source Code Pro', monospace;
  background: #000;

h1 {
  position: relative;
  text-transform: uppercase;
  letter-spacing: 6px;
  font-size: 10vw;
  font-weight: 900;
  text-decoration: none;
  color: white;
  display: inline-block;
  background-size: 120% 100%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  -moz-background-clip: text;
  -moz-text-fill-color: transparent;
  -ms-background-clip: text;
  -ms-text-fill-color: transparent;
  background-clip: text;
  text-fill-color: transparent;
  background-image: linear-gradient(45deg, 
  animation: .8s shake infinite alternate;

@keyframes shake {
  0% { transform: skewX(-15deg); }
  5% { transform: skewX(15deg); }
  10% { transform: skewX(-15deg); }
  15% { transform: skewX(15deg); }
  20% { transform: skewX(0deg); }
  100% { transform: skewX(0deg); }  

See the code below that is used to deliver this effect to your web page. Note, it uses the @keyframes rule which you may or may not want to read about.

h1 {position: relative;
text-transform: uppercase;
letter-spacing: 6px;
font-size: 10