body {
  background-image: url("https://i.postimg.cc/DypyZhgf/blackchainlinkfence.gif");
  h1 {
  font-size: 30px;
}
h2 {
  font-size: 20px;
}

h4 {
  font-size: 17px;
}
p {
  font-size: 14px;
}
 .box {
  border: 5px solid rgb(23, 23, 24);
  border-top-color: rgb(65, 65, 68);
  border-left-color: rgb(39, 39, 41);
  border-bottom-color: black;
  background-color: black;
  padding: 40px;
  margin: 40px;
  width: 600px;
  height: 260px;
  color: white;
}
}