<div class="container">
  <div class="arrow"></div>
  <div>

html, body {
  width: 100%;
  height: 100%;
}

.container {
  background-color: black;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

.arrow {
  max-width: 10em;
  height: 100px;
  width: 100%;
  background: background: rgb(75,255,250);
  background: linear-gradient(90deg, rgba(75,255,250,1) 47%,                     rgba(43,147,144,1) 47%, rgba(43,147,144,1) 100%);
  clip-path: polygon(0% 20%, 60% 20%, 60% 0%, 100% 50%, 60% 100%,              60% 80%, 0% 80%);
  background-size: 500px 10px;
  background-position: -300px 0px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  transition: all linear .6s;
}

.arrow:hover {
  background-position: 0px;
}