footer.css

.footer {
  background-color: #000;
}

.footer-navigation {
  padding: 5em 0 0 0;
  width: 66.66667%;
  float: left;
}

@media (max-width: 48em) {
  .footer-navigation {
    width: 100%;
    float: left;
    display: none;
  }
}

.footer-navigation .group {
  width: 33.33333%;
  float: left;
}

@media (max-width: 48em) {
  .footer-navigation .group {
    padding: 0 0 0 1em;
  }
}

@media (max-width: 40em) {
  .footer-navigation .group {
    width: 100%;
    float: left;
    margin: 0 0 1.5em 0;
  }
}

.footer-navigation .group h5 {
  color: #ffffff;
  font-size: 1em;
  margin: 0 0 2em 0;
}

.footer-navigation .group ul {
  margin: 0;
  padding: 0;
}

.footer-navigation .group ul li {
  margin: 0 0 0.275em 0;
}

.footer-navigation .group ul li a {
  color: #999999;
  font-size: 0.9em;
}

.footer-about {
  width: 33.33333%;
  float: left;
  border-left: 1px solid #333;
  color: #fff;
  margin: 2em 0 0 0;
  padding: 0 2em;
}

@media (max-width: 48em) {
  .footer-about {
    width: 100%;
    float: left;
    border-left: 0;
    padding: 0 1em;
  }
}

.footer-about .heading-3 {
  color: #ffffff;
  font-size: 2.25em;
  margin: 0 0 1em 0;
}

@media (max-width: 48em) {
  .footer-about .heading-3 {
    display: none;
  }
}

.footer-about .paragraph {
  font-size: 1.05em;
  padding: 0 0 1.5em 0;
}

@media (max-width: 48em) {
  .footer-about .paragraph {
    font-size: 1.2em;
    padding: 0;
  }
}

.footer-about .paragraph--alter {
  margin: 0 0 2.5em 0;
}

@media (max-width: 48em) {
  .footer-about .paragraph--alter {
    display: none;
  }
}

.footer-about .border-bottom {
  border-bottom: 1px solid #333;
}

@media (max-width: 48em) {
  .footer-about .newsletter {
    padding: 0 0 0 0;
  }
}

.footer-about .newsletter .text {
  color: #000;
  background-color: #fff;
  border: 0;
  border-radius: 5px;
  display: inline-block;
  height: 36px;
  padding: 0 1em 0 1em;
  width: 200px;
}

@media (max-width: 48em) {
  .footer-about .newsletter .text {
    color: #fff;
    background-color: transparent;
    border-radius: 0;
    border-bottom: 1px solid #5099d0;
    font-size: 1.2em;
    margin: 0 0 1.5em 0;
    outline: 0;
    padding: 0;
    width: 100%;
    display: block;
  }
}

.footer-about .newsletter .submit {
  background-color: #5099d0;
  border-radius: 5px;
  border: 0;
  color: #fff;
  display: inline-block;
  height: 36px;
  width: 90px;
  text-transform: uppercase;
  vertical-align: top;
}

@media (max-width: 1111px) {
  .footer-about .newsletter .submit {
    margin: 1em 0 0 0;
  }
}

@media (max-width: 48em) {
  .footer-about .newsletter .submit {
    margin: 0;
    display: block;
    height: 40px;
    line-height: 1;
    width: 100%;
  }
}

.footer-lastline {
  border-top: 1px solid #333;
  margin: 2em 0 0 0;
  padding: 3em 0 3em 0;
  overflow: hidden;
}

@media (max-width: 48em) {
  .footer-lastline {
    border-top: 0;
    margin: 0;
    padding: 1em;
  }
}

.footer-lastline .paragraph {
  color: #999999;
  font-size: 0.9em;
  line-height: 1.5;
  float: left;
  margin: 0;
}

@media (max-width: 40em) {
  .footer-lastline .paragraph {
    font-size: 0.75em;
    width: 140px;
  }
}

@media (max-width: 40em) {
  .footer-lastline .paragraph span {
    display: none;
  }
}

.footer-lastline .paragraph a {
  color: #999999;
  text-decoration: none;
}

@media (max-width: 40em) {
  .footer-lastline .paragraph a {
    display: none;
  }
}

.footer-lastline .social {
  float: right;
  margin: 0;
  padding: 0;
}

@media (max-width: 40em) {
  .footer-lastline .social {
    margin: 0 0 0 0;
  }
}

.footer-lastline .social li {
  display: inline-block;
}

.icon-facebook {
  background-image: url("../images/izotope_social_icons.png");
  background-position: 0 0;
  display: inline-block;
  width: 35px;
  height: 35px;
}

.icon-facebook:hover {
  background-position: 0 35px;
}

.icon-twitter {
  background-image: url("../images/izotope_social_icons.png");
  background-position: -35px 0;
  display: inline-block;
  width: 35px;
  height: 35px;
}

.icon-twitter:hover {
  background-position: -35px 35px;
}

.icon-youtube {
  background-image: url("../images/izotope_social_icons.png");
  background-position: -74px 0;
  display: inline-block;
  width: 35px;
  height: 35px;
}

.icon-youtube:hover {
  background-position: -74px 35px;
}

.icon-instagram {
  background-image: url("../images/izotope_social_icons.png");
  background-position: -110px 0;
  display: inline-block;
  width: 35px;
  height: 35px;
}

.icon-instagram:hover {
  background-position: -110px 35px;
}

@media only screen and (-webkit-min-device-pixel-ratio: 2), only screen and (min--moz-device-pixel-ratio: 2), only screen and (-o-min-device-pixel-ratio: 2 / 1), only screen and (min-device-pixel-ratio: 2), only screen and (min-resolution: 192dpi), only screen and (min-resolution: 2dppx) {
  .icon-facebook,
  .icon-twitter,
  .icon-youtube,
  .icon-instagram {
    background-image: url("../images/izotope_social_icons@2x.png");
    background-size: 146px 70px;
  }
}