h1 {
  color: #333333;
  font-size: 2em;
}

h2 {
  color: #333333;
  font-size: 1.5em;
}

body {
  margin: 1em;
  background-color: #f8f9f9;
}

.btn:focus {
  outline: none !important;
  box-shadow: none !important;
}

#switcher,
#sorter {
  margin: 0px 0px 0.5em 0px;
}

#switcher .label,
#sorter .label {
  font-size: 80%;
}

#counter {
  font-size: 0.8em;
}

#data {
  font-size: 0.9em;
}

#footer {
  font-size: 0.8em;
}

div.checkbox {
  cursor: pointer;
  margin: 0px 4px;
  display: inline-flex;
  align-items: center;
}

div.checkbox {
  opacity: 0.4;
}

div.checkbox.checked {
  opacity: 1;
}

div.contents {
  background-color: #ffffff;
  border: 1px solid #e0e0e0;
  border-radius: 4px;
  box-shadow: 0px 0px 4px 0px rgba(0, 0, 0, 0.2);
  padding: 1em;
  margin: 1em 0px;
}

#container {
  width: 100%;
  height: 400px;
  margin: 0px auto;
}

@media screen and (max-width: 600px) {
  h1 {
    margin: 0 0.5em;
  }

  body {
    margin: 1em 0em;
  }

  div.contents {
    border-radius: 0px;
  }
}