body {
    background-color: #000000;
    color: #ffffff;  
}

#logo {
  margin: auto;
  align-self: center;
  align-content: center;
  display: flex;
  justify-content: center;
  align-items: center;
}

#epochOverlay {
  position: fixed;
  top: 0;
  right: 0;
  background: black;
  color: lime;
  font-family: monospace;
  font-size: 24px;
  padding: 10px;
  z-index: 9999;
  width: 360px;
  height: 100px;
}
#epochBar {
  width: 100%;
  height: 20px;
  margin-top: 8px;
  position: relative;
  background: #006400;
}
#epochBarFill {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: lime;
}
.epochTick {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 1px;
  background: gray;
}