h1,
h2,
h3,
h4,
header,
body,
li,
article {
  font-family: sans-serif;
}

h1 {
  text-align: center;
}

.sechead {
  background: #f9f9f9;
  padding: 10px;
  text-align: center;
  box-shadow: 0 20px 30px 0 rgba(0, 0, 0, 0.6);
  font-family: sans-serif;
  border-radius: 25px;
}

body {
  padding: 20px;
  background-image: url(polymesh2-08-01.jpg);
  background-size: 2000px;
  border-radius: 25px;
}

article {
  box-shadow: 0 20px 30px 0 rgba(0, 0, 0, 0.6);
  padding: 10px;
  background: #f9f9f9;
  border-radius: 25px;
}

.right {
  float: right;
}

.left {
  float: left;
}

.clearfix::after {
  clear: both;
  content: "";
  display: block;
}

.nav {
  position: absolute;
  right: 100px;
  top: 60px;
}

.book {
  text-decoration: none;
}

/*
h1::before {
  content: "DEMO";
  background-color: #ffe70e;
  color: #444;
  font-size: 16px;
  font-weight: bold;
  display: inline-block;
  padding: 10px 10px;
  position: absolute;
  top: 10px;
  left: 10px;
  box-shadow: 0 20px 30px 0 rgba(0, 0, 0, 0.6);
}
*/

/*
.content {
  content: "DEMO";
  background-color: #ffe70e;
  color: #444;
  font-size: 16px;
  font-weight: bold;
  display: inline-block;
  padding: 10px 10px;
  position: absolute;
  bottom: 450px;
  left: 350px;
  box-shadow: 0 20px 30px 0 rgba(0, 0, 0, 0.6);
}
*/

/*
.row {
  display: flex;
  align-items: flex-start;
  flex-direction: column;
  flex-basis: 100%;
}

.Main-Head {
  width: max-content;
}
*/

aside {
  background: #f9f9f9;
  box-shadow: 0 20px 30px 0 rgba(0, 0, 0, 0.6);
  padding: 10px;
  border-radius: 25px 1000px 25px 100px;
}

.testred {
  background: red;
}

.links:hover {
  box-shadow: 0 1px 30px 0 rgba(0, 0, 0, 0.6);
}

button {
  border: none;
  color: white;
  padding: 5px 40px;
  font-size: 16px;
  border-radius: 30px 1px 30px 1px;
  display: inline-block;
  margin: 0px;
  background-image: linear-gradient(to right, #02aabd, #00cdac);
}

button:hover {
  box-shadow: 0 1px 30px 0 rgba(0, 0, 0, 0.6);
}

.buttons {
  align-items: center;
}

.Main-Head {
  background: #f9f9f9;
  padding: 10px;
  text-align: center;
  box-shadow: 0 20px 30px 0 rgba(0, 0, 0, 0.6);
  font-family: sans-serif;
  border-radius: 25px;
}

.center {
  text-align: center;
}

input {
  background-color: #f9f9f9;
  border: solid 2px #06e2ff;
  border-radius: 2px;
}

header {
  background: #f9f9f9;
  padding: 10px;
  box-shadow: 0 20px 30px 0 rgba(0, 0, 0, 0.6);
  border-radius: 25px;
  text-align: center;
}

.book-club:hover {
  text-decoration: none;
}

.dif-h1 {
  color: cornflowerblue;
  font-size: 100px;
}

.box {
  padding: 10px;
  border-radius: 20px;
}

.float {
  position: absolute;
  top: 80px;
  right: 190px;
}