Practice - 5 Tasks
Answer the questions below
1fill in blank
easyComplete the code to add a caption to the table for screen readers.
HTML
<table> [1] <tr><td>Data 1</td><td>Data 2</td></tr> </table>
Drag options to blanks, or click blank then click option'
Attempts:
3 left
💡 Hint
Common Mistakes
Using instead of <caption> inside the table.</div><div class="mistake-item">Using <header> or <summary> which are not valid table elements.</div></div></div><div class="feedback-box incorrect d-none"><div class="feedback-title">✗ Incorrect</div><div class="feedback-text"><p>The <caption> element provides a title or explanation for the table, which helps screen readers understand the table's purpose.</p></div></div></div></div><div class="puzzle-container " id="puzzle-fill_in_blank-1"><div class="task-card " id="try-t2" data-blank-count="1"><div class="task-header"><div class="task-badge"><span class="task-number">2</span><span class="task-type">fill in blank</span></div><span class="task-difficulty medium">medium</span></div><p class="task-instruction text-pre-wrap ">Complete the code to mark the first row as table headers.</p><div class="code-block"><div class="code-header"><span class="code-title">HTML</span></div><pre class="code-content" id="code-t2"><table>
<tr><span class="code-blank" data-blank="1" data-task="t2">[1]</span></tr>
<tr><td>Data <span class="hl-num">1</span></td><td>Data <span class="hl-num">2</span></td></tr>
</table></pre></div><div class="blank-selection-hint" id="hint-select-t2"><span class="d-flex align-items-center justify-content-center flex-wrap gap-1 line-height-normal"><span class="new-material-symbols icon-hw-22"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 -960 960 960" fill="#EF4444"><path d="M480-240q-76.33 0-138.83-43.5-62.5-43.5-87.5-115.83-4-12 2-23.34 6-11.33 19-15.33 13-4.33 25.83 2.17 12.83 6.5 18.83 20.83 19.67 49 63.34 78.67 43.66 29.66 97.33 29.66 72 0 122.67-50.66Q653.33-408 653.33-480q0-53-29.83-96.83-29.83-43.84-78.83-63.5-14.67-6-20.67-18.84-6-12.83-1.67-25.83 4.34-13 15.5-19 11.17-6 23.17-2 71 25 115 87.17 44 62.16 44 138.83 0 100-70 170t-170 70Zm0 160q-161.33 0-277.33-110.67-116-110.66-123-271.33-.34-13.33 8.83-23t22.83-10.67q13.67-1 24.5 8.84 10.84 9.83 12.17 24.5 12.67 138 106.17 226.83 93.5 88.83 225.83 88.83 139.33 0 236.33-97t97-236.33q0-133.67-90-228.17T496.67-812q-14.67-1.33-23.84-11.67-9.16-10.33-8.83-24.66.33-13.67 10-22.67 9.67-9 23-8.67 80 3 149.83 36 69.84 33 121.5 87.17Q820-702.33 850-631.17 880-560 880-480q0 83-31.5 156T763-197q-54 54-127 85.5T480-80Zm-97.33-420-132-131-33.34 101Q213-518 201-518.5q-12-.5-15.67-12.5L89.67-850q-2.67-9.33 4.5-16.5 7.16-7.17 16.5-4.5l319 95.67q12 3.66 12.5 15.66t-11.5 16.34l-101 33.33 132 132q17 17 17 39t-17 39q-17 17-39.5 17t-39.5-17Z"></path></svg></span> Drag options to blanks, or click blank then click option'</span></div><div class="fill-options" id="fillOptions-t2"><div class="fill-option " draggable="true" data-key="A" data-task="t2"><span class="option-key">A</span><th>Header 1</th><th>Header 2</th></div><div class="fill-option " draggable="true" data-key="B" data-task="t2"><span class="option-key">B</span><td>Header 1</td><td>Header 2</td></div><div class="fill-option " draggable="true" data-key="C" data-task="t2"><span class="option-key">C</span><caption>Headers</caption></div><div class="fill-option " draggable="true" data-key="D" data-task="t2"><span class="option-key">D</span><thead>Header 1 Header 2</thead></div></div><button class="verify-btn" id="verifyBtn-t2" disabled=""><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M5 13l4 4L19 7"></path></svg>Verify Answer</button><div class="attempts-counter" id="attempts-t2"><span>Attempts:</span><div class="attempts-dots"><span class="attempt-dot "></span><span class="attempt-dot "></span><span class="attempt-dot "></span></div><span id="attemptsLeft-t2">3<!-- --> left</span></div><div class="hint-box d-none" id="hint-t2"><div class="hint-box-title">💡 Hint</div><div class="hint-box-text" id="hintText-t2"></div></div><div class="mistakes-box d-none" id="mistakes-t2"><div class="mistakes-box-title">Common Mistakes</div><div class="mistakes-list"><div class="mistake-item">Using <td> instead of <th> for headers.</div><div class="mistake-item">Trying to use <thead> inside a <tr> which is invalid.</div></div></div><div class="feedback-box incorrect d-none"><div class="feedback-title">✗ Incorrect</div><div class="feedback-text"><p>The <th> element defines header cells in a table row, which screen readers identify as headers.</p></div></div></div></div><div class="puzzle-container " id="puzzle-fill_in_blank-2"><div class="task-card " id="try-t3" data-blank-count="1"><div class="task-header"><div class="task-badge"><span class="task-number">3</span><span class="task-type">fill in blank</span></div><span class="task-difficulty hard">hard</span></div><p class="task-instruction text-pre-wrap ">Fix the error in the table to correctly associate headers with data cells using scope.</p><div class="code-block"><div class="code-header"><span class="code-title">HTML</span></div><pre class="code-content" id="code-t3"><table>
<tr><th <span class="code-blank" data-blank="1" data-task="t3">[1]</span>>Name</th><th <span class="code-blank" data-blank="1" data-task="t3">[1]</span>>Age</th></tr>
<tr><td>Alice</td><td><span class="hl-num">30</span></td></tr>
</table></pre></div><div class="blank-selection-hint" id="hint-select-t3"><span class="d-flex align-items-center justify-content-center flex-wrap gap-1 line-height-normal"><span class="new-material-symbols icon-hw-22"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 -960 960 960" fill="#EF4444"><path d="M480-240q-76.33 0-138.83-43.5-62.5-43.5-87.5-115.83-4-12 2-23.34 6-11.33 19-15.33 13-4.33 25.83 2.17 12.83 6.5 18.83 20.83 19.67 49 63.34 78.67 43.66 29.66 97.33 29.66 72 0 122.67-50.66Q653.33-408 653.33-480q0-53-29.83-96.83-29.83-43.84-78.83-63.5-14.67-6-20.67-18.84-6-12.83-1.67-25.83 4.34-13 15.5-19 11.17-6 23.17-2 71 25 115 87.17 44 62.16 44 138.83 0 100-70 170t-170 70Zm0 160q-161.33 0-277.33-110.67-116-110.66-123-271.33-.34-13.33 8.83-23t22.83-10.67q13.67-1 24.5 8.84 10.84 9.83 12.17 24.5 12.67 138 106.17 226.83 93.5 88.83 225.83 88.83 139.33 0 236.33-97t97-236.33q0-133.67-90-228.17T496.67-812q-14.67-1.33-23.84-11.67-9.16-10.33-8.83-24.66.33-13.67 10-22.67 9.67-9 23-8.67 80 3 149.83 36 69.84 33 121.5 87.17Q820-702.33 850-631.17 880-560 880-480q0 83-31.5 156T763-197q-54 54-127 85.5T480-80Zm-97.33-420-132-131-33.34 101Q213-518 201-518.5q-12-.5-15.67-12.5L89.67-850q-2.67-9.33 4.5-16.5 7.16-7.17 16.5-4.5l319 95.67q12 3.66 12.5 15.66t-11.5 16.34l-101 33.33 132 132q17 17 17 39t-17 39q-17 17-39.5 17t-39.5-17Z"></path></svg></span> Drag options to blanks, or click blank then click option'</span></div><div class="fill-options" id="fillOptions-t3"><div class="fill-option " draggable="true" data-key="A" data-task="t3"><span class="option-key">A</span>scope="row"</div><div class="fill-option " draggable="true" data-key="B" data-task="t3"><span class="option-key">B</span>aria-label="header"</div><div class="fill-option " draggable="true" data-key="C" data-task="t3"><span class="option-key">C</span>scope="col"</div><div class="fill-option " draggable="true" data-key="D" data-task="t3"><span class="option-key">D</span>role="header"</div></div><button class="verify-btn" id="verifyBtn-t3" disabled=""><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M5 13l4 4L19 7"></path></svg>Verify Answer</button><div class="attempts-counter" id="attempts-t3"><span>Attempts:</span><div class="attempts-dots"><span class="attempt-dot "></span><span class="attempt-dot "></span><span class="attempt-dot "></span></div><span id="attemptsLeft-t3">3<!-- --> left</span></div><div class="hint-box d-none" id="hint-t3"><div class="hint-box-title">💡 Hint</div><div class="hint-box-text" id="hintText-t3"></div></div><div class="mistakes-box d-none" id="mistakes-t3"><div class="mistakes-box-title">Common Mistakes</div><div class="mistakes-list"><div class="mistake-item">Using scope="row" for column headers.</div><div class="mistake-item">Using aria-label or role attributes incorrectly.</div></div></div><div class="feedback-box incorrect d-none"><div class="feedback-title">✗ Incorrect</div><div class="feedback-text"><p>The scope="col" attribute tells screen readers that these headers apply to columns.</p></div></div></div></div><div class="puzzle-container " id="puzzle-fill_in_blank-3"><div class="task-card " id="try-t4" data-blank-count="2"><div class="task-header"><div class="task-badge"><span class="task-number">4</span><span class="task-type">fill in blank</span></div><span class="task-difficulty hard">hard</span></div><p class="task-instruction text-pre-wrap ">Fill both blanks to create a table with a header section and body section.</p><div class="code-block"><div class="code-header"><span class="code-title">HTML</span></div><pre class="code-content" id="code-t4"><table>
<span class="code-blank" data-blank="1" data-task="t4">[1]</span>>
<tr><th scope=<span class="hl-str">"col"</span>>Product</th><th scope=<span class="hl-str">"col"</span>>Price</th></tr>
<span class="code-blank" data-blank="2" data-task="t4">[2]</span>>
<tbody>
<tr><td>Book</td><td>$<span class="hl-num">10</span></td></tr>
</tbody>
</table></pre></div><div class="blank-selection-hint" id="hint-select-t4"><span class="d-flex align-items-center justify-content-center flex-wrap gap-1 line-height-normal"><span class="new-material-symbols icon-hw-22"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 -960 960 960" fill="#EF4444"><path d="M480-240q-76.33 0-138.83-43.5-62.5-43.5-87.5-115.83-4-12 2-23.34 6-11.33 19-15.33 13-4.33 25.83 2.17 12.83 6.5 18.83 20.83 19.67 49 63.34 78.67 43.66 29.66 97.33 29.66 72 0 122.67-50.66Q653.33-408 653.33-480q0-53-29.83-96.83-29.83-43.84-78.83-63.5-14.67-6-20.67-18.84-6-12.83-1.67-25.83 4.34-13 15.5-19 11.17-6 23.17-2 71 25 115 87.17 44 62.16 44 138.83 0 100-70 170t-170 70Zm0 160q-161.33 0-277.33-110.67-116-110.66-123-271.33-.34-13.33 8.83-23t22.83-10.67q13.67-1 24.5 8.84 10.84 9.83 12.17 24.5 12.67 138 106.17 226.83 93.5 88.83 225.83 88.83 139.33 0 236.33-97t97-236.33q0-133.67-90-228.17T496.67-812q-14.67-1.33-23.84-11.67-9.16-10.33-8.83-24.66.33-13.67 10-22.67 9.67-9 23-8.67 80 3 149.83 36 69.84 33 121.5 87.17Q820-702.33 850-631.17 880-560 880-480q0 83-31.5 156T763-197q-54 54-127 85.5T480-80Zm-97.33-420-132-131-33.34 101Q213-518 201-518.5q-12-.5-15.67-12.5L89.67-850q-2.67-9.33 4.5-16.5 7.16-7.17 16.5-4.5l319 95.67q12 3.66 12.5 15.66t-11.5 16.34l-101 33.33 132 132q17 17 17 39t-17 39q-17 17-39.5 17t-39.5-17Z"></path></svg></span> Drag options to blanks, or click blank then click option'</span></div><div class="fill-options" id="fillOptions-t4"><div class="fill-option " draggable="true" data-key="A" data-task="t4"><span class="option-key">A</span><thead</div><div class="fill-option " draggable="true" data-key="B" data-task="t4"><span class="option-key">B</span><tfoot</div><div class="fill-option " draggable="true" data-key="C" data-task="t4"><span class="option-key">C</span></thead</div><div class="fill-option " draggable="true" data-key="D" data-task="t4"><span class="option-key">D</span></tfoot</div></div><button class="verify-btn" id="verifyBtn-t4" disabled=""><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M5 13l4 4L19 7"></path></svg>Verify Answer</button><div class="attempts-counter" id="attempts-t4"><span>Attempts:</span><div class="attempts-dots"><span class="attempt-dot "></span><span class="attempt-dot "></span><span class="attempt-dot "></span></div><span id="attemptsLeft-t4">3<!-- --> left</span></div><div class="hint-box d-none" id="hint-t4"><div class="hint-box-title">💡 Hint</div><div class="hint-box-text" id="hintText-t4"></div></div><div class="mistakes-box d-none" id="mistakes-t4"><div class="mistakes-box-title">Common Mistakes</div><div class="mistakes-list"><div class="mistake-item">Using <tfoot> instead of <thead> for headers.</div><div class="mistake-item">Forgetting to close the <thead> tag.</div></div></div><div class="feedback-box incorrect d-none"><div class="feedback-title">✗ Incorrect</div><div class="feedback-text"><p>The <thead> and </thead> tags wrap the header rows of a table, separating them from the body.</p></div></div></div></div><div class="puzzle-container " id="puzzle-fill_in_blank-4"><div class="task-card " id="try-t5" data-blank-count="3"><div class="task-header"><div class="task-badge"><span class="task-number">5</span><span class="task-type">fill in blank</span></div><span class="task-difficulty hard">hard</span></div><p class="task-instruction text-pre-wrap ">Fill all three blanks to add a summary attribute and ARIA label for better accessibility.</p><div class="code-block"><div class="code-header"><span class="code-title">HTML</span></div><pre class="code-content" id="code-t5"><table <span class="code-blank" data-blank="1" data-task="t5">[1]</span>=<span class="hl-str">"Sales data for 2023"</span> <span class="code-blank" data-blank="2" data-task="t5">[2]</span>=<span class="hl-str">"sales-table"</span> <span class="code-blank" data-blank="3" data-task="t5">[3]</span>=<span class="hl-str">"Sales Table"</span>>
<caption>Annual Sales</caption>
<thead>
<tr><th scope=<span class="hl-str">"col"</span>>Month</th><th scope=<span class="hl-str">"col"</span>>Revenue</th></tr>
</thead>
<tbody>
<tr><td>January</td><td>$<span class="hl-num">1000</span></td></tr>
</tbody>
</table></pre></div><div class="blank-selection-hint" id="hint-select-t5"><span class="d-flex align-items-center justify-content-center flex-wrap gap-1 line-height-normal"><span class="new-material-symbols icon-hw-22"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 -960 960 960" fill="#EF4444"><path d="M480-240q-76.33 0-138.83-43.5-62.5-43.5-87.5-115.83-4-12 2-23.34 6-11.33 19-15.33 13-4.33 25.83 2.17 12.83 6.5 18.83 20.83 19.67 49 63.34 78.67 43.66 29.66 97.33 29.66 72 0 122.67-50.66Q653.33-408 653.33-480q0-53-29.83-96.83-29.83-43.84-78.83-63.5-14.67-6-20.67-18.84-6-12.83-1.67-25.83 4.34-13 15.5-19 11.17-6 23.17-2 71 25 115 87.17 44 62.16 44 138.83 0 100-70 170t-170 70Zm0 160q-161.33 0-277.33-110.67-116-110.66-123-271.33-.34-13.33 8.83-23t22.83-10.67q13.67-1 24.5 8.84 10.84 9.83 12.17 24.5 12.67 138 106.17 226.83 93.5 88.83 225.83 88.83 139.33 0 236.33-97t97-236.33q0-133.67-90-228.17T496.67-812q-14.67-1.33-23.84-11.67-9.16-10.33-8.83-24.66.33-13.67 10-22.67 9.67-9 23-8.67 80 3 149.83 36 69.84 33 121.5 87.17Q820-702.33 850-631.17 880-560 880-480q0 83-31.5 156T763-197q-54 54-127 85.5T480-80Zm-97.33-420-132-131-33.34 101Q213-518 201-518.5q-12-.5-15.67-12.5L89.67-850q-2.67-9.33 4.5-16.5 7.16-7.17 16.5-4.5l319 95.67q12 3.66 12.5 15.66t-11.5 16.34l-101 33.33 132 132q17 17 17 39t-17 39q-17 17-39.5 17t-39.5-17Z"></path></svg></span> Drag options to blanks, or click blank then click option'</span></div><div class="fill-options" id="fillOptions-t5"><div class="fill-option " draggable="true" data-key="A" data-task="t5"><span class="option-key">A</span>summary</div><div class="fill-option " draggable="true" data-key="B" data-task="t5"><span class="option-key">B</span>id</div><div class="fill-option " draggable="true" data-key="C" data-task="t5"><span class="option-key">C</span>aria-label</div><div class="fill-option " draggable="true" data-key="D" data-task="t5"><span class="option-key">D</span>class</div></div><button class="verify-btn" id="verifyBtn-t5" disabled=""><svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2"><path d="M5 13l4 4L19 7"></path></svg>Verify Answer</button><div class="attempts-counter" id="attempts-t5"><span>Attempts:</span><div class="attempts-dots"><span class="attempt-dot "></span><span class="attempt-dot "></span><span class="attempt-dot "></span></div><span id="attemptsLeft-t5">3<!-- --> left</span></div><div class="hint-box d-none" id="hint-t5"><div class="hint-box-title">💡 Hint</div><div class="hint-box-text" id="hintText-t5"></div></div><div class="mistakes-box d-none" id="mistakes-t5"><div class="mistakes-box-title">Common Mistakes</div><div class="mistakes-list"><div class="mistake-item">Using class instead of id for unique identification.</div><div class="mistake-item">Confusing aria-label with summary.</div></div></div><div class="feedback-box incorrect d-none"><div class="feedback-title">✗ Incorrect</div><div class="feedback-text"><p>The <code>summary</code> attribute describes the table for screen readers, <code>id</code> gives a unique identifier, and <code>aria-label</code> provides an accessible name.</p></div></div></div></div></div></div></article></div></div></main><div style="position:fixed;bottom:24px;right:24px;z-index:50"><button style="background:rgba(255,255,255,0.95);border:1px solid rgba(108,99,255,0.18);border-radius:10px;padding:10px 16px;color:#5f56fe;font-size:14px;cursor:pointer;display:flex;align-items:center;gap:7px;backdrop-filter:blur(12px);box-shadow:0 2px 12px rgba(0,0,0,0.08), 0 0 0 1px rgba(108,99,255,0.06);transition:all 0.2s"><span style="font-size:14px">⚑</span>Report Issue</button></div></div> <script src="/_next/static/chunks/webpack-fd24bd8e19d2841a.js" 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body.\u003c/p\u003e\",\"hints\":[{\"level\":1,\"hint\":\"The header section starts with \u0026lt;thead\u0026gt; and ends with \u0026lt;/thead\u0026gt;.\"},{\"level\":2,\"hint\":\"Make sure to close the tag properly with a slash.\"}],\"common_mistakes\":[\"Using \u0026lt;tfoot\u0026gt; instead of \u0026lt;thead\u0026gt; for headers.\",\"Forgetting to close the \u0026lt;thead\u0026gt; tag.\"],\"max_attempts\":3,\"time_limit_seconds\":120},{\"id\":\"t5\",\"type\":\"fill_in_blank\",\"difficulty\":\"hard\",\"instruction\":\"Fill all three blanks to add a summary attribute and ARIA label for better accessibility.\",\"code\":\"\u003ctable {{BLANK_1}}=\\\"Sales data for 2023\\\" {{BLANK_2}}=\\\"sales-table\\\" {{BLANK_3}}=\\\"Sales Table\\\"\u003e\\n \u003ccaption\u003eAnnual Sales\u003c/caption\u003e\\n \u003cthead\u003e\\n \u003ctr\u003e\u003cth scope=\\\"col\\\"\u003eMonth\u003c/th\u003e\u003cth scope=\\\"col\\\"\u003eRevenue\u003c/th\u003e\u003c/tr\u003e\\n \u003c/thead\u003e\\n 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summary.\"],\"max_attempts\":3,\"time_limit_seconds\":120}],\"learning_checkpoint\":{\"after_task\":3,\"micro_summary\":\"\u003cp\u003eYou have learned how to add captions, use header cells, and apply scope attributes to make tables accessible.\u003c/p\u003e\"},\"metadata\":{\"version\":\"5.0\",\"content_type\":\"markup\",\"total_tasks\":5,\"estimated_time_minutes\":10}}},\"subject\":\"html\",\"title\":\"Table accessibility basics\"},\"syllabusData\":{\"subject\":\"html\",\"part\":\"part-1\",\"difficulty\":\"beginner\",\"metadata\":{\"total_topics\":7,\"total_patterns\":43,\"patterns_with_content\":43,\"created_at\":\"2026-02-28T20:17:17.741100Z\",\"version\":\"4.2\",\"upload_tool\":\"upload_to_mongo.py v2.0\"},\"part_title\":\"Core Structure \u0026 Content\",\"subjectTitle\":\"HTML\",\"topics\":[{\"topic_id\":\"html_p1_t1\",\"title\":\"HTML Basics \u0026 Web Fundamentals\",\"order\":1,\"pattern_count\":7,\"patterns\":[{\"pattern_id\":\"html_what_is_html\",\"title\":\"What is 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