nouveau-theatre-de-besancon/assets/css/src/calendar-strip.css

.calendar-strip {
  --padding-vertical: calc(var(--space-m) / 2);
  position: relative;
  background-color: var(--color-yellow);
  width: 100%;
  display: flex;
  align-items: center;
  z-index: 2;
}

.calendar-strip__selector {
  flex-shrink: 0;
  display: flex;
  justify-content: space-between;
  width: 10rem;
}

.calendar-strip__days {
  display: flex;
  justify-content: space-evenly;
  width: 100%;
}

.calendar-strip__day {
  font-size: var(--font-size-s);
  transition: opacity 0.2s ease-in-out;
}

.calendar-strip__day button {
  text-align: center;
}
.calendar-strip__day button.today {
  color: var(--color-salmon);
  opacity: 1 !important;
}
.calendar-strip__day button span {
  display: block;
}
.calendar-strip__day span:nth-child(1) {
  margin-bottom: 0.2rem;
}

.calendar-strip__day.active span:nth-child(2) {
  text-decoration: underline;
}

.calendar-strip__calendar-btn {
  border: var(--border);
  padding: 0.2rem 0.5rem;
}

.calendar-strip__date {
  position: absolute;
  box-sizing: border-box;
  overflow: hidden;
  left: 0;
  top: 100%;
  width: 100%;
  max-height: 0;
  background-color: #fff;
  z-index: 0;
  transition: max-height 0.3s ease-in-out;
  border-bottom: var(--border);
}
.calendar-strip__date.open {
  max-height: 20rem;
}

@media screen and (max-width: 800px) {
  .calendar-strip {
    margin-top: 2rem;
    border-top: var(--border);
  }
}