html-series/12-Accessibility (A11Y) + Best Practices.html at main · jdcodebase/html-series · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />

    <!-- Mobile Friendly -->
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />

    <title>12 – Accessibility (A11Y) + Best Practices | JDCodebase</title>

    <!-- Basic SEO -->
    <meta
      name="description"
      content="Learn HTML Accessibility (A11Y) best practices including alt text, ARIA roles, keyboard navigation, semantic tags, and screen reader support."
    />

    <style>
      button {
        padding: 10px 18px;
        cursor: pointer;
      }

      .fake-btn {
        border: 2px solid #333;
        padding: 10px 18px;
        display: inline-block;
      }

      /* Focus visible styles */
      :focus {
        outline: 3px solid blue;
      }
    </style>
  </head>

  <body>
    <header>
      <h1>Accessibility in HTML (A11Y)</h1>
    </header>

    <main>
      <!-- Images Accessibility -->
      <section>
        <h2>Accessible Images</h2>

        <!-- Meaningful Image -->
        <img src="assets/car.webp" alt="Red sports car parked on a road" />

        <!-- Decorative Image (No Meaning) -->
        <img src="assets/dog.webp" alt="" />
      </section>

      <!-- Buttons & ARIA -->
      <section>
        <h2>Buttons & ARIA</h2>

        <!-- Screen Reader Label -->
        <button aria-label="Close menu">X</button>

        <!-- ❌ Wrong: div should not be a button -->
        <div class="fake-btn" role="button" tabindex="0">
          Click me (not recommended)
        </div>

        <!-- ✅ Correct -->
        <button>Click me</button>

        <!-- Keyboard Accessible -->
        <button tabindex="0">Submit</button>
      </section>

      <!-- Semantic Structure -->
      <section>
        <h2>Semantic Structure Example</h2>

        <header>
          <h3>JDCodebase Website</h3>
        </header>

        <nav>
          <a href="#">Home</a>
          <a href="#">About</a>
        </nav>

        <main>
          <section>
            <h3>Accessibility</h3>
            <p>Learn HTML A11Y basics with examples</p>
          </section>
        </main>

        <footer>
          <p>© 2025 JDCodebase</p>
        </footer>
      </section>
    </main>
  </body>
</html>