body {
  margin: 0;
}
#container {
  position: relative;
  width: 100%;
  height: 100%;
  background-image: url("background.jpg");
  background-repeat: no-repeat;
  background-position: center;
}
#content {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 100%;
  margin: auto;
  padding-top: 48px;
  padding-bottom: 48px;
  text-align: center;
  background-color: rgba(0, 0, 0, 0.75);
}
#logo {
  height: auto;
  width: auto;
  max-width: 95%;
  padding-bottom: 24px;
}
#slogan {
  max-width: 95%;
  margin-left: auto;
  margin-right: auto;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 36px;
  color: #7a29cc;
  color: white;
}
#footer {
  position: absolute;
  bottom: 0px;
  right: 0px;
  padding-left: 16px;
  padding-right: 16px;
  font-family: Arial, Helvetica, sans-serif;
  color: white;
  text-shadow: 1px 1px #a059d3;
  font-size: 12px;
}
@media screen and (max-width: 540px) {
  #slogan { font-size: 24px; }
}
@media screen and (max-width: 280px) {
  #slogan { font-size: 18px; }
}