* {
  -webkit-box-sizing: border-box;
          box-sizing: border-box;
}

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

body {
  font-family: "Roboto", sans-serif;
  background: #333 url(../images/bg.png);
}

.wrapper {
  text-align: center;
  color: #fff;
  position: relative;
  top: 50%;
  position: absolute;
  left: 50%;
  -webkit-transform: translate(-50%, -50%);
          transform: translate(-50%, -50%);
}
.wrapper a {
  color: #fff;
}
.wrapper .logo {
  width: 300px;
  margin: 0 auto;
}
.wrapper .logo img {
  width: 100%;
  display: block;
}