body {
    height: 100%;
    padding:0;
    margin:0;
    background-color: #F8F8FF;
    text-align: center;
}

footer {
/*    position: fixed;
    bottom: 20px;
*/
    position: relative;
    bottom: -90%;
    text-align: center;
    width: 100%;
}

.responsive {
  max-width: fit-content;
  width: 100%;
  height: auto;
}

header {
    background-color: #DEE3EB;
    height: 50px;
    border-bottom: 1px solid #ccc;
}

header h3 {
    padding-top: 10px;
    padding-bottom: 10px;
    margin: 0;
    font-family: sans-serif;
    font-size: 18pt;
    text-align: center;
}

footer {
  background-color: red;
}

.content { padding-top:20px; margin:20px; }