:root {
  --bg-color: #2196F3;
}
html,body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overscroll-behavior: none;
}
header {
  background-color: var(--bg-color);
  color: white;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  text-align: center;
}
header a img {
  height: 2em;
}
header h1 {
  margin: 0;
  flex: 1;
  padding-left: 10px;
}
main{
  flex: 1;
  overflow: auto;
  padding: 0 16px 16px 16px;
  justify-content: space-between;
}
footer{
  background-color: var(--bg-color);
  margin:0;
  padding: 0 0 0 0.25em;
}
footer a {
  color: black;
  display: inline-block;
  padding: 0.25em;
}
footer a:hover {
  background-color: #69b3ff;
}
.container {
  display: flex;
  flex-direction: column;
  height: 100%;
  margin: 0;
  padding: 0;
}