body {
  margin: 0;
  padding: 2rem;
  height: 100%;
  min-height: 100vh;
  color: #333;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  background-image: url(../img/circle-scatter-haikei.svg);
  background-size: cover;
  /* line-height: 1.4; */
}

* {
  box-sizing: border-box;
}

header {
  padding: 0 3rem;
}

header h1 {
  font-size: 5rem;
  font-weight: 800;
  margin: 0;
  margin-bottom: 1rem;
}

header p {
  margin: 0;
  width: 100%;
  max-width: 720px;
}

header a.homelink {
  display: inline-block;
  margin-bottom: 1rem;
}

ul li {
  margin-bottom: .5rem;
}

hr {
  outline: none;
  border-color: red;
  border: none;
  border-top: 1px solid rgba(0,0,0,.1);
  margin: 1rem 0;
}

.column {
  width: 100%;
  padding: 2rem;
  background-color: rgba(255, 255, 255, 0.3);
  margin: 2%;
}

.session {
  width: 100%;
  display: flex;
  margin-bottom: .5rem;
}

.session .time {
  padding-right: 1rem;
  text-align: right;
  width: 120px;
}

.session .student {
  font-weight: 700;
}

@media screen and (min-width: 720px) {
  .column {
  width: 46%;
  padding-right: 2rem;
  float: left;
}

}