body {
  max-width: 50rem;
  margin: 1rem auto;
  line-height: 1.5;
  word-wrap: break-word;
  padding: 0 1rem;
  background: black;
  color: white;
  font-family: "Franklin Gothic Medium", "Arial Narrow", Arial, sans-serif;
}
pre {
  overflow-x: auto;
  word-wrap: normal;
  border: 0px;
  padding: 1rem;
}
hr {
  border: 1px solid gray;
}
a:link {
  color: cyan;
}
a:visited {
  color: darkcyan;
}
.center {
  text-align: center;
}
h1,
h2,
h3,
h4,
h5,
h6 {
  padding-top: 1rem;
  color: fuchsia;
}
li {
  padding-top: 0.25rem;
}

input:invalid {
  outline-color: red;
  outline-style: solid;
  outline-width: thin;
}

fieldset:has(input:invalid) {
  outline-color: red;
  outline-style: solid;
  outline-width: thin;
}

input[type="radio"]:invalid {
  outline-style: none;
}

.flex-aligned {
  display: flex;
  justify-content: start;
}

.flexbox {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
}

.flex-vertical {
  display: flex;
  justify-content: start;
  flex-flow: column wrap;
}

.outline {
  outline: auto;
  outline-color: cyan;
}

.info::marker {
  content: "☛ ";
}

.antendees::marker {
  content: "❖ ";
}

.info-header {
  font-size: x-large;
  font-weight: bold;
}

.flex {
  display: flex;
}

.rsvp-inputs > * {
  margin: 0.5rem;
}

.container {
  display: flex;
  justify-content: center;
}

iframe {
  aspect-ratio: 16 / 9;
  width: 100% !important;
}

.fluid-img {
  max-width: 100%;
  display: block;
  height: auto;
}

.fluid-img-not-block {
  max-width: 100%;
  height: auto;
}