<div class="contents">text</div>
<div class="cp_snslink07">
<ul class="cp_link_list">
<li class="cp_link facebook"><a href="#"><i class="fa fa-facebook fa-fw fa-2x"></i></a></li>
<li class="cp_link twitter"><a href="#"><i class="fa fa-twitter fa-fw fa-2x"></i></a></li>
<li class="cp_link google"><a href="#"><i class="fa fa-google-plus fa-fw fa-2x"></i></a></li>
<li class="cp_link instagram"><a href="#"><i class="fa fa-instagram fa-fw fa-2x"></i></a></li>
</ul>
</div>

* {
	-webkit-box-sizing: border-box;
	        box-sizing: border-box;
}
body {
	/*設置する親要素ページ全体ならbodyなど*/
	position: relative;
	height: 100vh;
	margin: 0;
	padding: 0;
}
.contents {
	/*サンプルはfixedの確認のためにheight指定しています。*/
	height: 2000px;
}
.cp_snslink07 {
	position: fixed;
	top: 5px;
	display: block;
	width: 100%;
	height: 0;
	margin: 0;
	padding: 0;
	-webkit-transform: translateY(-50%);
	        transform: translateY(-50%);
	text-align: center;
	border-top: 10px solid #90CAF9;
}
.cp_snslink07 .cp_link_list {
	position: absolute;
	right: 1%;
	margin: 0;
	padding: 0;
	list-style: none;
}
.cp_snslink07 .cp_link {
	display: inline-block;
	width: 50px;
	height: 50px;
	margin: 0;
	padding: 10px 0 0 0;
	transition: all 0.3s;
	color: #ffffff;
	border-radius: 0 0 8px 8px;
	background: #90CAF9;
	-webkit-box-shadow: 0 3px 3px 0 rgba(0,0,0,0.2);
	        box-shadow: 0 3px 3px 0 rgba(0,0,0,0.2);
}
.cp_snslink07 .cp_link:hover {
	height: 53px;
	-webkit-box-shadow: 0 0 0 0 rgba(0,0,0,0.2);
	        box-shadow: 0 0 0 0 rgba(0,0,0,0.2);
}
.cp_snslink07 .cp_link a {
	transition: all 0.3s;
	text-align: center;
	color: #ffffff;
}
.cp_snslink07 .cp_link:hover a {
	filter: drop-shadow(0px 0px 5px rgba(255,255,255,0.8));
}
.cp_snslink07 .cp_link.facebook:hover a {
	color: #3b5999;
}
.cp_snslink07 .cp_link.twitter:hover a {
	color: #55acee;
}
.cp_snslink07 .cp_link.google:hover a {
	color: #dd4b39;
}
.cp_snslink07 .cp_link.instagram:hover a {
	color: #e4405f;
}