Toster layout task

by AntowaKartowa

HTML

<div class="container">
  <section class="sidebar">
    <h2>Services</h2>
    <menu class="menu">
      <ul class="menu-list">
        <li class="menu-item">
          <nav><a href="" class="menu-link">Item</a></nav>
        </li>
        <li class="menu-item">
          <nav><a href="" class="menu-link">Item</a></nav>
        </li>
        <li class="menu-item">
          <nav><a href="" class="menu-link">Item</a></nav>
        </li>
        <li class="menu-item">
          <nav><a href="" class="menu-link">Item</a></nav>
        </li>
        <li class="menu-item">
          <nav><a href="" class="menu-link">Item</a></nav>
        </li>
        <li class="menu-item">
          <nav><a href="" class="menu-link">Item</a></nav>
        </li>
        <li class="menu-item">
          <nav><a href="" class="menu-link">Item</a></nav>
        </li>
        <li class="menu-item">
          <nav><a href="" class="menu-link">Item</a></nav>
        </li>
        <li class="menu-item">
          <nav><a href="" class="menu-link">Item</a></nav>
        </li>
        <li class="menu-item">
          <nav><a href="" class="menu-link">Item</a></nav>
        </li>
      </ul>
    </menu>
  </section>
  
  <main class="main-area">
    <menu class="breadcrumbs">
      <ul class="breadcrumbs-list">
        <li class="breadcrumbs-item"><a href="" class="breadcrumbs-link">Home</a></li>
        <li class="breadcrumbs-item"><a href="" class="breadcrumbs-link">Sub-Route</a></li>
        <li class="breadcrumbs-item">Lorem ipsum dolor.</li>
      </ul>
    </menu>
    <header class="title">
      <h1>Lorem ipsum dolor.</h1>
    </header>
    <section class="sub-header">
        <section class="poster">
          <img src="https://placeimg.com/480/270/any" alt="" class="image" width="480" height="270">
        </section>
        <section class="docs-and-links">
          <p><a href="">Lorem ipsum dolor sit amet.</a></p>
          <p><a href="">Lorem ipsum dolor sit.</a></p>
          <p><a...

CSS

html, body {
  margin: 0;
  padding: 0;
  box-shadow: inset 0 230px 0 orangered;
}

.container {
  display: grid;
  grid-template-columns: calc(25% - 10px) calc(75% - 10px);
  grid-column-gap: 20px;
  grid-row-gap: 20px;
  margin: 0 auto;
  padding: 50px 0;
  width: 1000px;
  font-family: 'Open Sans', 'Helvetica', sans-serif;
}

.sidebar {
  align-self: start;
  background-color: #f6f6f6;
  padding: 0 20px 30px;
}

.menu,
.menu-list,
.breadcrumbs,
.breadcrumbs-list {
  padding: 0;
}

.menu-list {
  list-style-type: none;
}

.menu-item {
  padding: 5px 0 5px 10px;
}

.menu-link,
.menu-link:visited,
.menu-link:active {
  color: #666;
  text-decoration: none;
}

.menu-link:hover {
  color: #333;
  text-decoration: underline;
}

.breadcrumbs-list {
  list-style-type: none;
  font-size: 0.9em;
  font-family: serif;
}

.breadcrumbs-item {
  display: inline-block;
  color: #fff;
}

.breadcrumbs-item:not(:last-child)::after {
  content: '/';
  display: inline-block;
  margin-left: 5px;
}

.breadcrumbs-link,
.breadcrumbs-link:hover,
.breadcrumbs-link:visited,
.breadcrumbs-link:active {
  color: #fff;
  text-decoration: none;
}

.breadcrumbs-link:hover {
  text-decoration: underline;
}

.title {
  font-family: serif;
  color: #fff;
}

.sub-header {
  position: relative;
  display: grid;
  grid-template-columns: calc(66.66% - 10px) calc(33.33% - 10px);
  grid-column-gap: 20px;
  padding: 20px 0 25px;
  z-index: 1;
}

.poster {
  align-self: start;
  box-shadow: inset 0 0 0 8px lawngreen, 2px -2px 5px rgba(0, 0, 0, 0.2);
  overflow: hidden;
}

.image {
  display: block;
  position: relative;
  z-index: -1;
  background-color: #fff;
}

.docs-and-links {
  padding-right: 8px;
}

.deco {
  position: absolute;
  top: 0px;
  left: 150px;
  right: 0px;
  bottom: -70px;
  z-index: -2;
  background-color: #f9f9f9;
  box-shadow: inset 0 0 0 8px yellow, 2px -2px 5px rgba(0, 0, 0, 0.2);
}

.article {
  position: relative;
  margin-right: 10%;
  line-height: 1.5em;
  color: #333;
 ...