:root {
  color-scheme: light dark;
}

* {
  margin: 0;
  padding: 0;
  font-family: Verdana, Tahoma, sans-serif;
}

body {
  background-color: light-dark(#eee, #333);
  background-image:
    linear-gradient(90deg, transparent 134px, light-dark(#eac, #66c) 134px, light-dark(#eac, #66c) 137px, transparent 137px),
    repeating-linear-gradient(0deg, light-dark(#ccc, #626262) 1px, light-dark(#ccc, #626262) 3px, transparent 1px, transparent 20px),
    repeating-linear-gradient(90deg, light-dark(#ccc, #626262) 1px, light-dark(#ccc, #626262) 3px, transparent 1px, transparent 20px);
  background-size: 100% 100%;
  background-attachment: fixed;
  color: light-dark(#111, #eee);
}

a {
  text-decoration: none;
}
a:link {
  color: light-dark(#f88, #77f);
}
a:visited {
	color: light-dark(#f68, #97f);
}
a:hover {
  color: light-dark(#95d, #fad);
}

.wrapper {
  margin: 10px;
  display: flex;
  justify-content: center;
  max-width: 100%;
  flex-wrap: wrap;
}

.header {
  display: flex;
  margin-top: 20px;
}
.header h1 {
  font-size: 40px;
}

.navigation {
  display: flex;
  margin: 20px 0px 20px 0px;
}
.navigation * {
  margin: 0px 12px 0px 12px;
}
.navigation a {
  font-size: 22px;
  font-weight: bold;
  background-color: light-dark(#eee, #333);
}
.navigation button {
  background-color: light-dark(#ddd, #444);
  border: 1px solid light-dark(#224, #ede);
  border-radius: 10px;
  font-size: 18px;
  padding: 2px 4px 2px 4px;
}

.content {
  background-color: light-dark(#fff8ff, #595959);
  border: 2px solid light-dark(#224, #ede);
  border-radius: 20px;
  width: 60%;
  padding: 20px;
}
.content h1 {
  font-size: 35px;
  font-weight: normal;
  line-height: 40px;
  letter-spacing: -1px;
}
.content p {
  margin: 10px 0;
  font-size: 16px;
  line-height: 1.5;
}
.content ul, .content ol {
  margin: 20px;
}
.content li {
  font-size: 15px;
  line-height: 20px;
}
.content ul li {
  list-style-type: circle fill;
}
.content img {
  margin: 10px auto 10px auto;
  width: 50%;
  display: block;
}
.content .inlineimg {
  vertical-align: middle; 
  margin: 0 0; 
  display: inline;
  width: auto;
}
.content blockquote {
  padding-left: 1em;
  font-style: italic;
  border-left: solid 2px #555;
}
.content pre {
  border: 2px solid #ddd;
  border-radius: 5px;
  background-color: #fff;
  padding: 5px 5px;
  margin: 10px 0;
}
.content code *, .content code {
  font-family: monospace;
  font-size: 14px;
  color: #111;
}
.content p code {
  border: 1px solid #ddd;
  border-radius: 3px;
  background-color: #fff;
  padding: 2px;
}

.button, .stamp {
  margin: 5px 10px 5px 10px;
  display: flex;
  flex-wrap: wrap;
}

@media only screen and (max-width:1000px) {
  .content {
    width: 95%;
  }
  .content img {
    width: 80%;
  }
}
