html,
body * {
  margin: 0;
  padding: 0;
  font-family: 'Noto Sans KR', sans-serif;

}

.container {
  display: flex;
  flex-direction: column;
}

header {
  display: flex;
  flex-direction: column;
  margin: 1rem 0 0 1.5rem
}

h1 {
  font-size: 2rem;
  margin: 1rem 0 0 1rem;
}

h2 {
  margin: 0 0 4rem 1.1rem;
  font-size: 1rem;
}

h3 {
  margin: 0 0 0 3rem;
}

#clock {
  font-size: 8rem;
  font-family: 'Roboto Mono', monospace;
  margin: 0 0 0 2rem;
}


@media (max-width: 768px) {
  #clock {
    font-size: 4rem;

  }

  .titme-labels {
    font-size: 2rem;
  }
}

#date {
  margin: 0 0 4rem 2.5rem;
}

#loadTime {
  font-size: 1.5rem;
  margin: 0 0 0 2.5rem;
  flex-shrink: 0;
  width: 14em;
}

.refresh {
  width: 8rem;
  margin: 3rem 0 0 2.5rem;
  font-size: large;
  font-family: 'Noto Sans KR', sans-serif;
}

[data-descr] {
  position: relative;
  text-decoration: underline;
  cursor: help;
}

[data-descr]:hover::after,
[data-descr]:focus::after {
  content: attr(data-descr);
  position: absolute;
  left: 260px;
  top: 2px;
  min-width: 270px;
  border: 1px #aaaaaa solid;
  border-radius: 10px;
  background-color: #ffffcc;
  padding: 4px;
  color: #000000;
  font-size: 16px;
  z-index: 1;
}