Page jump link to next section

Site URL: https://www.laterrarossa.com

Thank you to you all for your help in adding a scroll down indicator to several of my pages. I am having difficulty in making the indicator arrow a button which jumps to the next section within each page of my site: https://www.laterrarossa.com. The code for the scroll indicator is below:

<div class="scroll-down"></div>
<style>
  .scroll-down {
	position: absolute;
	left: 50%;
	bottom: 10px;
	display: block;
	text-align: center;
	font-size: 20px;
	z-index: 100;
	text-decoration: none;
	text-shadow: 0;
  width: 13px;
  height: 13px;
  border-bottom: 2px solid white;
  border-right: 2px solid white;
  z-index: 9;
  left: 50%;
  -webkit-transform: translate(-50%, 0%) rotate(45deg);
  -moz-transform: translate(-50%, 0%) rotate(45deg);
  transform: translate(-50%, 0%) rotate(45deg);
	-webkit-animation: fade_move_down 4s ease-in-out infinite;
	-moz-animation:    fade_move_down 4s ease-in-out infinite;
	animation:         fade_move_down 4s ease-in-out infinite;
}


/*animated scroll arrow animation*/
@-webkit-keyframes fade_move_down {
  0%   { -webkit-transform:translate(0,-10px) rotate(45deg); opacity: 0;  }
  50%  { opacity: 1;  }
  100% { -webkit-transform:translate(0,10px) rotate(45deg); opacity: 0; }
}
@-moz-keyframes fade_move_down {
  0%   { -moz-transform:translate(0,-10px) rotate(45deg); opacity: 0;  }
  50%  { opacity: 1;  }
  100% { -moz-transform:translate(0,10px) rotate(45deg); opacity: 0; }
}
@keyframes fade_move_down {
  0%   { transform:translate(0,-10px) rotate(45deg); opacity: 0;  }
  50%  { opacity: 1;  }
  100% { transform:translate(0,10px) rotate(45deg); opacity: 0; }
}
</style>

I have also added this page anchor code lower on the page:

<h2 id="instagram">Instagram</h2>