Фиксированные иконки соц. сетей

css.css

/* Social links */
.box_socials{
  position: fixed;
  top: 35%;
  right: 10px;
  z-index:999
}
.box_socials a{
  clear: both;
}
.box_socials img {
    opacity: 1;
    margin-top: 6px;
}
.box_socials img:hover {
    opacity: 0.8;
} 

html.html

<noindex>
    <div class="box_socials">
        <div><a rel="nofollow" target="_blank" href="#"><img alt="" src="/img/ico/ico_vk.png"></a></div>
        <div><a rel="nofollow" target="_blank" href="#"><img alt="" src="/img/ico/ico_f.png"></a></div>
        <div><a rel="nofollow" target="_blank" href="#"><img alt="" src="/img/ico/ico_od.png"></a></div>
        <div><a rel="nofollow" target="_blank" href="#"><img alt="" src="/img/ico/instagram.png"></a></div>
    </div>
</noindex>

Файлы иконок - https://yadi.sk/d/fBvnEQBt3HDW9w