html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
}

.sr-only {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.social {
  position: relative;
  width: 100%;
  bottom:0px;
  text-align: center;
  margin-top: 18px;
  margin-bottom: 18px;
  padding-top: 13px;
  padding-bottom: 11px;
  background: rgb(255,255,255,0.5);
}

.social__link {
  display: inline-block;
  text-decoration: none;
  margin: 2px;
  padding: 2px;
  font-size: 3.3em;
  cursor: pointer;
  outline: none;
  transition: 0.5s;
  margin-left: 2%;
  margin-right: 2%;
}
.social__link:hover, .social__link:focus {
  transform: scale(1.08);
  transition: 0.5s;
}
.social__link--facebook {
  color: #3b5998;
}
.social__link--instagram {
  color: #c32aa3;
}
.social__link--spotify {
  color: #1db954;
}
.social__link--youtube {
  color: #f00;
}