.is-primary {
  background-image: url("moscow.jpg");
  background-size:     cover;
  background-repeat:   no-repeat;
  background-position: center center;

  min-height: 200px;
}

.is-primary .container {
  background-color: rgba(1, 1, 1, 0.7);
}

.container {
  max-width: 900px;
}

#speakers ul, #organizers ul, #scientists ul {
  margin-top: .25em;
  list-style: none;
  margin-left: 0;
}

#speakers span {
  color: #AAAAAA;
}

footer.footer {
  padding-top: 1.5em;
  padding-bottom: 1.5em;
}

.talk+.talk {
  margin-top: 3em;
}

.talk h6 {
  font-style: italic;
  margin-bottom: 1em !important;
}

.day+.day {
  margin-top: 3em;
}

.day tr td:first-child {
  width: 8em;
  padding-left: 0;
}

table {
  border-collapse: collapse;
}

.day td {
  border: none !important;
}