body {
    font-family:Arial, Helvetica, sans-serif;
    color: #ffffff;
    text-align: center;
    background-color: #3d3d3d;
}

img {
    border-radius: 3px;
    border: 1px solid white;
}
.container {
  text-align: left;
  margin-left: 10%;
  margin-right: 10%;
}
.center {
  text-align: center;
}