body {
  margin: 0;
  font-family: Arial;
  color: black;
}

/* formatting for latest image description bar */
.titlebar {
  color: #FFFFFF;
  text-align: left;
  background-color: #000000;
}

.timestamp {
  color: #FFFFFF;
  text-align: right;
  background-color: #000000;
}

/* formatting for top navigation bar */
.topnav {
  overflow: hidden;
  background-color: black;
}

.topnav a {
  float: left;
  color: #f2f2f2;
  text-align: center;
  padding: 14px 16px;
  text-decoration: none;
  font-size: 17px;
}

.topnav a:hover {
  background-color: #ddd;
  color: black;
}

.topnav a.active {
  background-color: #4CAF50;
  color: white;
}

/* formatting for footer */
.footer {
  background-color: #f0f0f0;
  padding-left: 16px;
  padding: 30px;
  margin: 10px;
}

/* battery box */
#batteryBox {
  position: fixed;
  top: 10px;
  right: 10px;
  background: #222;
  color: #0f0;
  padding: 6px 10px;
  border-radius: 6px;
  font-family: Arial, sans-serif;
  font-size: 14px;
  border: 1px solid #0f0;
  z-index: 9999;
}

#setIntervalButton {
    position: fixed;
    right: 10px;
    top: 90px;
    z-index: 9999;
}

#intervalDialog {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    z-index: 10000;
}

#dialogContent {
    background: #fff;
    padding: 20px;
    width: 250px;
    margin: 150px auto;
    border-radius: 8px;
    text-align: center;
    font-family: Arial;
}