* {
  box-sizing: border-box;
  font-family: Calibri, sans-serif;
}

html, body {
  height: 100%;
  margin: 0;
  background: #eee;
}

#wrapper {
  width: 800px;
  margin: 20px auto;
  background: #fff;
  border: 1px solid #000;
  display: grid;
  grid-template-columns: 1fr 200px;
  grid-template-rows: auto 1fr auto;
}

.left {
  grid-column: 1 / 2;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

.reklam {
  grid-column: 2 / 3;
  grid-row: 1 / -1;
  background: yellow;
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 18px;
  border-left: 1px solid #000;
}

.adbox {
  background: #fff;
  border: 2px solid #ff0000;
  padding: 12px;
  width: 140px;
  text-align: center;
  font-weight: 700;
}

header {
  background: #f66b6b;
  color: #fff;
  text-align: center;
  padding: 22px 10px;
  font-size: 32px;
  font-weight: 700;
  border-bottom: 1px solid #000;
}

.content {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 0;
  align-items: start;
  border-bottom: 1px solid #000;
}

aside {
  background: #00ff40;
  padding: 18px;
  border-right: 1px solid #000;
  height: 520px;
  display: flex;
  align-items: flex-start;
}

.aside-box {
  background: #fff;
  border: 1px solid #000;
  padding: 12px;
  width: 100%;
}

.aside-box h3 {
  margin: 0 0 8px 0;
  font-size: 18px;
}

.aside-box a {
  display: block;
  margin: 6px 0;
  text-decoration: underline;
  color: #000;
}

.active {
  font-weight: 700;
  text-decoration: none;
}

article {
  padding: 20px 24px;
  height: 520px;
  overflow: auto;
}

article h2, article h3 {
  margin: 0 0 8px 0;
}

article p {
  line-height: 1.45;
  margin: 0 0 12px 0;
}

.article-image {
  display: block;
  margin: 12px 0 0 0;
  width: 150px;
  height: auto;
  border: 1px solid #000;
  padding: 6px;
  background: #fff;
}

footer {
  background: #999;
  padding: 20px;
  text-align: center;
  font-size: 26px;
  border-top: 1px solid #000;
  color: #000;
}

h1, h2, h3 {
  margin: 0;
  padding: 0;
}