body {
  background-size: 800px;

  color: #acacac;
  position: relative;
  display: block;
  width: 1280px;
  margin-top: 20px;
  margin-left: auto;
  margin-right: auto;
  font-family: "Courier New";
  font-size: 18px;
  text-align: center;
}
.main {
  background: #232324;
  width: 1280px;
  height: 720px;
  padding: 10px;
  border: 3px solid #6092ff;
  border-radius: 5px;
}

.intro {
  background: #161618;
  width: 400px;
  height: 290px;
  padding: 5px;
  overflow: scroll;
  margin-bottom: 5px;

  border: 2px solid #3b3b3b;
  font-size: 17px;

  text-align: left;
}

b {
  color: #92b6ff;
  margin-left: 4px;
}

.title {
  background-image: linear-gradient(to right, #443e6a, #1b1b18);

  height: 30px;
  text-align: left;
  font-size: 30px;
  padding: 5px;
}

.swallowtail {
  float: right;
}

.imageworld {
  margin-left: px;
  background: #161618;
  width: 410px;
  height: 404px;
  margin-top: 5px;
  overflow: scroll;
  border: 2px solid #3b3b3b;
}

/* The grid: Four equal columns that floats next to each other */
.column {
  float: left;
  width: 44%;
  padding: 10px;
  padding-bottom: 1px;
}

/* Style the images inside the grid */
.column img {
  width: 190px;
  height: 190px;
  object-fit: cover;
  object-position: 50% 50%;
  cursor: pointer;
}

.column img:hover {
  opacity: 1;
}

/* Clear floats after the columns */
.row:after {
  content: "";
  display: table;
  clear: both;
}

/* The expanding image container (positioning is needed to position the close button and the text) */
.container img {
  height: 700px;
  object-fit: cover;
}

.container {
  width: 840px;
  height: 500px;
  margin: 5px;
  position: relative;
  display: none;
}

/* Expanding image text */
#imgtext {
  position: absolute;
  top: 10px;
  left: 15px;
  color: white;
  font-size: 20px;
  padding: 5px;
  background: #161618;
  opacity: 0.9;
}

/* Closable button inside the image */
.closebtn {
  position: absolute;
  top: 10px;
  right: 15px;
  color: white;
  font-size: 35px;
  cursor: pointer;
}

.blowup {
  background: #161618;
  border: 2px dashed #3b3b3b;
  margin-top: -307px;
  height: 710px;

  float: right;
}