/* simple sticky-footer layout */
html, body {
  height: 100%;
}
body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
.container-main {
  flex: 1 0 auto;
}
.site-footer {
  flex-shrink: 0;
  border-top: 1px solid rgba(0,0,0,0.05);
  background-color: #f8f9fa;
}