body {
  padding: 3em 1em;
  line-height: 1.75; 
  font-size: 1.25em;
  letter-spacing: 0.1em;
  border-radius: 1em;
  overflow-x: hidden;
}

section {
  max-width: 80ch;
  margin: 2em auto;
}

footer {
  text-align: center;
  font-size: 1.5em;
}

h1,h2,h3{line-height:1.2}

p {margin: 0 0 10px 0;}

img {max-width: 100%}

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

.back-link {
width: 26.4em; 
height: 4em; 
border-width: 8px; 
border-color: black; 
border-style: dashed solid dashed solid; 
background-color: #C9CCA1; 
text-align: center;
}

.back-link a {
font-size: 2em; 
padding: 0 0.8em;
}

.back-link a:focus {
outline: 10px dotted #444455;
}

.sendoff-box {
background-color: #0F2652;
color: #2ED6A3;
border: 1em dashed; 
border-color: #2ED6A3; 
text-align: center;
padding: 0.5em 2em;
margin: 0 3em;
line-height: 2.2em;
}

.pretentious {
background-color: #243F60;
color: #F7D53B;
font-size: 2em;
border-radius: 2rem;
padding: 0.2em;
}

.center {
  display: block;
  margin-left: auto;
  margin-right: auto;
}