* {
  box-sizing: border-box;
}

body {
  font-family: "Courier New", monospace;
  color: #4B5A73;
  background: url("../img/pattern.png");
  margin-left: 200px;
  margin-right: 200px;
}

.img-border {
  border-radius: 5px;
  border: 3px solid #AFBED4;
}

p {
  font-family: "Courier New", monospace;
  color: #4B5A73;
  font-size: 15px;
}

h1 {
  font-family: "Courier New", monospace;
  color: #4B5A73;
  font-size: 20px;
}

h2 {
  font-family: "Courier New", monospace;
  color: #4B5A73;
  font-size: 18px;
}

a {
  color: #4B5A73;
  padding: 10px;
  min-width: 100px;
  max-width: 500px;
  text-decoration: none;
  display: block;
  border: 1px solid #4B5A73;
  border-radius: 5px;
}

a:hover {
  background-color: #AFBED4;
  text-decoration: none;
  color: white;
}

/* Header */
.header {
  background-color: #AFBED4;
  padding: 20px;
  text-align: right;
  font-size: 30px;
 
  border-top-left-radius: 10px;
  border-top-right-radius: 10px;
}

/* Row containing the columns */
.row {
  display: flex;
  align-items: stretch;
}

/* All columns */
.column {
  padding: 10px;
  color: #4B5A73;
}

/* Side column */
.column.side {
  width: 20%;
}

/* Middle column */
.column.middle {
  width: 80%;
}

/* Footer */
.footer {
  background-color: #AFBED4;
  padding: 10px;
  text-align: center;
  border-bottom-left-radius: 10px;
  border-bottom-right-radius: 10px;
}

/* Responsive layout */
@media (max-width: 600px) {
  .row {
    flex-direction: column;
  }

  .column.side,
  .column.middle {
    width: 100%;
  }

  body {
    margin-left: 20px;
    margin-right: 20px;
  }
}