body {
  background-color: #f2f2f2;
  min-width: 100%;
  min-height: 100%;
}

#container_1 {
    background-color: inherit;
    width: 100%;
    position: relative;
    padding-top: 1%;
}

h1 {
    text-align: center;
    color: black;
    font-family:sans-serif;
}

img {
    display: block;
    margin: 0 auto;
}