body { background-color: gray; }
h1 { color: navy; margin-left: 20px; }
h3 {
  font-family: 'Arial', sans-serif;
  font-size: 16pt;
  color: navy;
}
p {
  color: navy;
  font-family: Garamond, Palatino, serif;
  font-size: 20px;
  line-height: 1.5;
  text-align: left;
  margin-left: 5em;
  margin-right: 5em;
  margin-bottom: 1em
}
a {
  color: navy;
  font-size: 16px;
  font-family: Arial, sans-serif
}
div#table {
  display: block;
  width: 80%;   /* shrink-wrap the content, modern browsers */
  margin: 0 auto;       /* center horizontally */
  margin-bottom: 50px;
  text-align: center;
}
div#row {
  display: flex;        /* use flexbox instead of table-row */
  justify-content: center;
  gap: 4px;
  background-color: rgba(200, 200, 200, 0.7);
  flex-wrap: nowrap;      /* makes it responsive */
   text-align: center;
}
div#cell {
  margin: 2px;
  margin-left: 40px;
  margin-right: 40px;
  text-align: center;
}
#paragraph {
  padding: 20px 0 30px 40px;
  margin: 0 auto;
  text-align: left;
  width: 80%;
  color: #146b9d;
  font-size: 14pt;
  font-weight: bold;
  font-family: Futura, "Noto Sans SC", sans-serif;
}
.center-text {
  text-align: center;
}

/* changed ID -> class for captions */
.caption {
  padding: 5px 0 15px 0;   /* less padding than paragraphs */
  text-align: center;
  color: #146b9d;
  font-size: 10pt;
  font-weight: bold;
  font-family: Futura, "Noto Sans SC", sans-serif;
}

figure {
  text-align: center;
  margin: 20px auto;
}
figcaption {
  color: #333;
  font-size: 1em;
  margin-top: 8px;
}  
.left-img {
  float: left;
  margin: 0 15px 15px 0;
}
.right-img {
  float: right;
  margin: 0 0 15px 15px;
}
.center-img {
  display: block;
  margin: 0 auto;
}