Wave Animation Pure CSS

1<div class="textContainer">
2   <h1 class="d_f bouncingAnim">
3         <span>T</span>
4         <span>R</span>
5         <span>A</span>
6         <span>I</span>
7         <span>N</span>
8         <span>I</span>
9         <span>N</span>
10         <span>G</span>
11         <!-- Training -->
12     </h1>
13</div>