body {
    margin: 0;
    padding: 0;
    background: #cccccc;
}

html body table tbody tr td {
    width: 100%;
    text-align: center;
}
html body table tbody tr td img,
img#seismogramm {
    margin: 0 auto;
}
img#seismogramm {
    display: block;
    margin: 0 auto;
    max-width: 100%;
    height: auto;
}
img#seismogramm {
    display: block;
    margin: 0 auto;
    max-width: 100%;
    max-height: 90vh;
    width: auto;
    height: auto;
}
.copyright {
  text-align: center;
  font-weight: 600 !important;
  line-height: 30px;
}