/* reset  */

html {
  box-sizing: border-box;
  }
  *, *:before, *:after {
  box-sizing: inherit;
}
  
body {
  margin: 0;
}
  
/* typography */
  
body {
  font-family: 'Courier New', Courier, monospace;
  font-size: 16px;
}
  
h1 {
  font-family: 'Playfair Display', serif;
  font-size: 48px;
}
  
h2 {
  font-size: 32px;
}
  
h3 {
  font-size: 28px;
}

p {
  font-size: 16px;
}

a {
  color: grey
}

#site-footer p {
  font-size: 14px;
  font-style: italic;
  color: #8f1624;
}

/* layout */

.container {
  margin: 0 20px;
}

#site-main {
  margin: 0 auto;
  width: 100%;
  max-width: 800px;
  text-align: left;
  line-height: 1.6;
}

/* site header */

#site-header {
  padding-top: 20px;
  width: 100%;
  max-width: 500px;
  margin: 0 auto;
}

#site-header h1 {
  margin: 0;
}

#menu {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
}

#menu li {
  list-style-type: none;
}

/* site main */

.content img {
  width: 100%;
}

#site-main h3 {
  border-bottom: 3px solid;
}

#top-button {
  display: none;
  position: fixed;
  bottom: 20px;
  right: 30px;
  z-index: 99;
  border: none;
  outline: none;
  background-color: #1b1819;
  color: white;
  cursor: pointer;
  padding: 15px;
  border-radius: 10px;
  font-size: 18px;
}

#top-button :hover {
  background-color: red;
}

/* site footer */

#site-footer {
  margin: 0 auto;
  width: 100%;
  max-width: 800px;
  padding: 30px 0 20px;
  border-top: 3px solid;
}