My CSS styled some links I didn't want to change

Hi. I'm new to GeneratePress, and I'm more of a tinkerer than a web-designer. :-)

I used CSS to style the links in my posts (below), which seems to work, but it also effects the links for the Related posts after my post. For example, see this blog post.

Is there an easy fix, to not change the style of the links in Related posts?

/* unvisited link */
.entry-content a:link {
  color: #283655;
	font-weight: 600;
	background-color: #d0e1f9;
}

/* visited link */
.entry-content a:visited {
  color: #d0e1f9;
}

/* mouse over link */
.entry-content a:hover {
  background-color: #4d648d;
	color: #fff;
}

/* selected link */
.entry-content a:active {
  color: #d0e1f9;
}