.content{
  align-items: center;
  width: 100%;
  display: flex;
  flex-direction: column;
}
/*waves*/
#waves {
  position: relative;
  width: 100%;
  /* Set width as needed */
  height: 200px;
  /* Set height as needed */
  margin-top: 70vh;
}
.center {
  display: block;
  margin-left: auto;
  margin-right: auto;
  width: 50%;
}