html {
    background: url('https://whatithinkabout.neocities.org/65%20(167).jpg');
  background-size: cover;
  -webkit-background-size: cover;
  font-size: 20px;
  font-family: "Montserrat", sans-serif;
}
body {
.main {
  width: 1000px;
  margin: 0 auto;
  background-color: rgb(235 251 255 / 0.7);
  color: black;
  padding: 0 20px 20px 20px;
}
img {
  display: block;
  margin: 0 auto;
  max-width: 100%;
}
.header {
  width: 100%;
  height: 52px;
  position: fixed;
  z-index: 1;
  right: 0px;
  top: 0px;
  margin: 0;
  background: #000000;
  color: white;
  font-size: 25px;
}