body {
  font-family: sans-serif;
}

.content:before {
  content: "";
  position: fixed;
  left: 0;
  right: 0;
  z-index: -1;
  opacity: 1;

  display: block;
  background-image: url('small.jpg');
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  width: 100%;
  height: 100%;

  -webkit-filter: blur(5px);
  -moz-filter: blur(5px);
  -o-filter: blur(5px);
  -ms-filter: blur(5px);
  filter: blur(5px);
}

@media (min-width: 600px) {
  .content:before {
    background-image: url('big.jpg');

    -webkit-filter: blur(10px);
    -moz-filter: blur(10px);
    -o-filter: blur(10px);
    -ms-filter: blur(10px);
    filter: blur(10px);
  }
}

.content {
  position: fixed;
  left: 0;
  right: 0;
  z-index: 0;
  text-align: center;
  height: 100%;
  width: 100%;
}

p {
  padding: 15px;
}

h1 {
  margin-top: 5px;
}

h3 {
  margin-bottom: 5px;
}

.wrapper {
  margin: auto;
  -webkit-box-shadow: 0px 4px 8px 0px rgba(0, 0, 0, 0.42);
  -moz-box-shadow: 0px 4px 8px 0px rgba(0, 0, 0, 0.42);
  box-shadow: 0px 4px 8px 0px rgba(0, 0, 0, 0.42);
  background: rgba(255, 255, 255, 0.85);
  padding: 20px 0px;
}

.wrapper {
  width: 100%;
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  -webkit-transform: translateY(-50%);
}