body {
  max-width: 50em;
  font-family: "Helvetica", sans-serif;
  margin: auto;
  padding-top: 1em;
  padding-bottom: 1em;
  padding-left: 0.5em;
  padding-right: 0.5em;
  background-color: white;
}

.bg-mask {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-color: #cbdaf2; /* your colour */
  mask-image: url("background_1pc.jpg");
  mask-mode: luminance;
  mask-size: cover;
  mask-position: center;
}

#content {
  background-color: white;
  max-width: 50em;
  padding-left: 1em;
  padding-right: 1em;
  padding-top: 0.5em;
  padding-bottom: 2em;
  display: "flex";
  gap: 1em;
}

.icon-text {
  display: flex;
  align-items: center;
  gap: 0.5em;
}

#html-day-banner {
  border: 0.2em solid lime;
  background-color: white;
  padding: 0.5em;
}