wave-css.html

<style>
.ag-format-container {
  width: 1142px;
  margin: 0 auto;
}


.ag-wave {
  padding: 100px 0;
  background-color: #00a2ff;

  position: relative;
}
.ag-wave:before {
  content: "";
  height: 125px;
  width: 100%;
  background: url(https://raw.githack.com/SochavaAG/example-mycode/master/pens/animation-wave-shadow/images/wave.svg) repeat-x scroll 0 0;
  background-size: 1600px 198px;

  position: absolute;
  left: 0;
  bottom: 0;

  -webkit-filter: drop-shadow(5px -10px 3px rgba(0, 0, 0, .2));
  filter: drop-shadow(5px -10px 3px rgba(0, 0, 0, .2));

  -webkit-animation: an-wave 20s linear infinite;
  -moz-animation: an-wave 20s linear infinite;
  -o-animation: an-wave 20s linear infinite;
  animation: an-wave 20s linear infinite;
}

@-webkit-keyframes an-wave {
  100% {
    background-position-x: -1600px;
  }
}
@-moz-keyframes an-wave {
  100% {
    background-position-x: -1600px;
  }
}
@-o-keyframes an-wave {
  100% {
    background-position-x: -1600px;
  }
}
@keyframes an-wave {
  100% {
    background-position-x: -1600px;
  }
}


@media only screen and (max-width: 767px) {
  .ag-format-container {
    width: 96%;
  }

}

@media only screen and (max-width: 639px) {

}

@media only screen and (max-width: 479px) {

}

@media (min-width: 768px) and (max-width: 979px) {
  .ag-format-container {
    width: 750px;
  }

}

@media (min-width: 980px) and (max-width: 1161px) {
  .ag-format-container {
    width: 960px;
  }

}
</style>
<div class="ag-wave">
  <div class="ag-format-container">

  </div>
</div>
<script>
(function ($) {
  $(function () {

    

  });
})(jQuery);
</script>