.outer {
    display: table;
    position: absolute;
    height: 100%;
    width: 100%;
}

.middle {
    display: table-cell;
    vertical-align: middle;
}

.inner {
    margin-left: auto;
    margin-right: auto;
    width: 400px; /*whatever width you want*/
    text-align: center;
}
img{
  width: 225px;
  margin-left: auto;
  margin-right: auto;
  display: block;
}
body{background:#181818;}
p {
    color: #6f6f6f;
    font-family: sans-serif;
    font-size: 12px;
}