HTML-CSS: Responsive layout with sidebar

Last update on May 28 2022 07:25:47 (UTC/GMT +8 hours)

HTML-CSS : Exercise-35 with Solution

Using HTML, CSS creates a responsive layout with a content area and a sidebar.

Use display: grid on the parent container, to create a grid layout.
Use minmax() for the second column (sidebar) to allow it to take up between 150px and 20%.
Use 1fr for the first column (main content) to take up the rest of the remaining space.

HTML Code:

<!--License: https://bit.ly/3GjrtVF-->
<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>Using HTML, CSS creates a responsive layout with a content area and a sidebar.</title>
</head>
<body>
<div class="w3r-container">
  <main>
    w3resource.com
  </main>
  <aside>
    Max: 25% / Min: 150px
  </aside>
</div>
</body>
</html>

CSS Code:

.w3r-container {
  display: grid;
  grid-template-columns: 1fr minmax(25%, 150px);
  height: 100px;
}

main, aside {
  padding: 12px;
  text-align: center;
}

main {
  background: #cc87ff;
}

aside {
  background: #ff78cc;
}

HTML-CSS Editor:

See the Pen html-css-practical-exercises by w3resource (@w3resource) on CodePen.

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HTML-CSS: Tips of the Day

What is the difference between id and class in CSS, and when should I use them?

Example:

<div id="header_id" class="header_class">
Text
</div>

#header_id {font-color:#fff}
.header_class {font-color:#000}

(Note that CSS uses the prefix # for IDs and . for Classes.)

However color was an HTML 4.01 <font> tag attribute deprecated in HTML 5. In CSS there is no "font-color", the style is color so the above should read:

Example:

<div id="header_id" class="header_class">
Text
</div>

#header_id {color:#fff}
.header_class {color:#000}

The text would be white.

Ref: https://bit.ly/39Stv4P