.arrow-container {
  display: inline-block;
  position: relative;
  width: 30px;
  height: 30px;
  border: 1px solid rgb(255, 255, 255);
  border-radius: 50%;
}

.arrow-down {
  width: 0;
  height: 0;
  border-left: 10px solid transparent;
  border-right: 10px solid transparent;
  border-top: 15px solid rgb(255, 255, 255);
  position: absolute;
  top: 30%;
  left: 0;
  right: 0;
  margin: auto;
}