Cards, Lists, and Content Organization

Activity Signup Timeline

Complete the activity timeline for event signups, with real content, actionable controls, clear status feedback, and responsive layouts across sizes.

Cards, Lists, and Content OrganizationActivity timelineHTMLCSSJavaScript
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    <header class="mast"><div><span class="eyebrow">art-deco / Event Timeline / INTERMEDIATE</span><h1>Activity Signup Timeline</h1><p class="intro">Complete the activity timeline for event signups, with real content, actionable controls, clear status feedback, and responsive layouts across sizes.</p></div><span class="scenario">Event Sign-ups</span></header>
    <figure class="composition-gallery"><section class="demo" aria-label="Activity Sign-up Timeline Interactive Area"><section id="evidenceShell" class="evidence-shell" data-board-mode="scan"><header class="evidence-head"><div><span class="eyebrow">Event sign-ups / EVIDENCE BOARD</span><h2>Activity Timeline Monitoring Panel</h2><p>Place the main case into an evidence board, using separate observation cards, logs, and mode-switch records to track the current result.</p></div><div class="evidence-tools"><div class="row"><button class="action primary" type="button" data-board-mode="scan">Scan</button><button class="action" type="button" data-board-mode="proof">Verify</button><button class="action" type="button" data-board-mode="handoff">Handoff</button></div><output id="evidenceStatus">Awaiting Sampling</output></div></header><div class="evidence-body"><section class="evidence-stage"><div class="evidence-ribbon"><button type="button" data-evidence-card="0" aria-pressed="true"><span>01</span><strong>Event registration favorites</strong><small>Check whether the status change is visible</small></button><button type="button" data-evidence-card="1" aria-pressed="false"><span>02</span><strong>Event sign-up overview</strong><small>Confirm keyboard and click entry points are consistent</small></button><button type="button" data-evidence-card="2" aria-pressed="false"><span>03</span><strong>Event Signup Plan</strong><small>Check whether the layout falls back on narrow screens</small></button><button type="button" data-evidence-card="3" aria-pressed="false"><span>04</span><strong>Event signup inspiration</strong><small>Record current review conclusion</small></button></div><div id="evidenceCoreShell" class="evidence-core-shell"><div class="workflow-session"><header class="session-command"><div><span class="eyebrow">Event Sign-up SESSION</span><h2>Event Registration Countdown Desk</h2></div><output id="workflowSessionClock">00:45</output><label>Round Duration<input id="workflowSessionLength" type="range" min="15" max="90" step="15" value="45"><span>sec</span></label><button id="workflowSessionToggle" class="action primary" type="button">Start saving arrangement</button></header><div id="workflowSessionProgress" role="progressbar" aria-label="Event Sign-Up Progress" aria-valuemin="0" aria-valuemax="100" aria-valuenow="0"><i></i></div><section id="workflowCore" class="workflow-core session-stage" data-session-phase="ready" tabindex="-1"><!-- 11DZ_CORE_START:cards-lists-content-activity-timeline --><div class="timeline-demo"><header><span class="eyebrow">ACTIVITY TIMELINE</span><h2>Activity sign-up timeline</h2><label>Completed items only <input id="timelineComplete" type="checkbox" data-core-bridge="cards-lists-content-activity-timeline"></label></header><ol id="activityTimeline" class="activity-timeline"><li data-complete="true"><time datetime="2026-07-01">07.01</time><div><span class="chip">Completed</span><h3>Event registration favorites</h3><p>Record a traceable status change and responsibility note.</p></div></li><li data-complete="false"><time datetime="2026-07-02">07.02</time><div><span class="chip">In Progress</span><h3>Event sign-up overview</h3><p>Record a traceable status change and responsibility note.</p></div></li><li data-complete="true"><time datetime="2026-07-03">07.03</time><div><span class="chip">Completed</span><h3>Event Signup Plan</h3><p>Record a traceable status change and responsibility note.</p></div></li><li data-complete="false"><time datetime="2026-07-04">07.04</time><div><span class="chip">In Progress</span><h3>Event signup inspiration</h3><p>Record a traceable status change and responsibility note.</p></div></li><li data-complete="true"><time datetime="2026-07-05">07.05</time><div><span class="chip">Completed</span><h3>Event registration records</h3><p>Record a traceable status change and responsibility note.</p></div></li><li data-complete="false"><time datetime="2026-07-06">07.06</time><div><span class="chip">In Progress</span><h3>Event registration collaboration</h3><p>Record a traceable status change and responsibility note.</p></div></li></ol></div><!-- 11DZ_CORE_END --></section><footer class="session-log"><strong id="workflowSessionScore">0 interaction checkpoints</strong><ol id="workflowSessionLaps" aria-label="Round Log"></ol></footer></div></div></section><aside class="evidence-rail"><label>Canvas Zoom<input id="evidenceZoom" type="range" min="88" max="128" value="100"><output id="evidenceZoomValue">100%</output></label><label>Current sample<select id="evidenceStep"><option value="0">Event registration favorites</option><option value="1">Event sign-up overview</option><option value="2">Event Signup Plan</option><option value="3">Event signup inspiration</option></select></label><ul id="evidenceChecklist" class="evidence-checklist"><li>Event registration favorites</li><li>Event sign-up overview</li><li>Event Signup Plan</li><li>Event signup inspiration</li></ul><button id="evidenceCapture" class="action primary" type="button">Write evidence</button><ol id="evidenceLog" class="evidence-log"><li>Evidence not yet entered</li></ol></aside></div></section><p id="status" class="status" role="status" aria-live="polite"></p></section><figcaption class="gallery-caption"><strong>Event Sign-ups / GALLERY 03</strong></figcaption></figure>
  </main>
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const workflowSessionCore=document.querySelector('#workflowCore');const workflowSessionToggle=document.querySelector('#workflowSessionToggle');const workflowSessionLength=document.querySelector('#workflowSessionLength');const workflowSessionState={phase:'ready',elapsed:0,limit:Number(workflowSessionLength.value),checkpoints:[],timer:null};function workflowSessionFormat(seconds){return String(Math.floor(seconds/60)).padStart(2,'0')+':'+String(seconds%60).padStart(2,'0');}function workflowSessionDrive(){const percent=Math.min(100,Math.round(workflowSessionState.elapsed/workflowSessionState.limit*100));document.querySelector('#workflowSessionClock').textContent=workflowSessionFormat(Math.max(0,workflowSessionState.limit-workflowSessionState.elapsed));const progress=document.querySelector('#workflowSessionProgress');progress.setAttribute('aria-valuenow',String(percent));progress.querySelector('i').style.width=percent+'%';workflowSessionCore.dataset.sessionPhase=workflowSessionState.phase;document.querySelector('#workflowSessionScore').textContent=workflowSessionState.checkpoints.length+' interactive checkpoints';}function workflowSessionLap(label){workflowSessionState.checkpoints.push({label,at:workflowSessionState.elapsed});const item=document.createElement('li');item.textContent=label+' · '+workflowSessionFormat(workflowSessionState.elapsed);document.querySelector('#workflowSessionLaps').append(item);workflowSessionDrive();}function workflowSessionStop(complete=false){clearInterval(workflowSessionState.timer);workflowSessionState.timer=null;workflowSessionState.phase=complete?'complete':'paused';workflowSessionToggle.textContent=complete?'Restart':'Continue round';workflowSessionToggle.setAttribute('aria-pressed','false');workflowSessionDrive();announce(complete?'Activity signup round complete':'Round paused');}function workflowSessionStart(){if(workflowSessionState.phase==='complete'){workflowSessionState.elapsed=0;workflowSessionState.checkpoints=[];document.querySelector('#workflowSessionLaps').replaceChildren();}workflowSessionState.phase='running';workflowSessionToggle.textContent='Pause round';workflowSessionToggle.setAttribute('aria-pressed','true');const bridge=workflowBridgeActivate();workflowSessionLap(bridge.summary);clearInterval(workflowSessionState.timer);workflowSessionState.timer=setInterval(()=>{workflowSessionState.elapsed+=1;if(workflowSessionState.elapsed>=workflowSessionState.limit){workflowSessionStop(true);return;}workflowSessionDrive();},1000);workflowSessionDrive();announce('Event signup round has started · '+bridge.summary);}workflowSessionToggle.addEventListener('click',()=>workflowSessionState.phase==='running'?workflowSessionStop():workflowSessionStart());workflowSessionLength.addEventListener('input',()=>{workflowSessionState.limit=Number(workflowSessionLength.value);workflowSessionState.elapsed=Math.min(workflowSessionState.elapsed,workflowSessionState.limit);workflowSessionDrive();});workflowSessionCore.addEventListener('keydown',event=>{if(event.key==='Enter'||event.key===' '){workflowSessionLap('Keyboard Interaction');}});workflowSessionCore.addEventListener('click',event=>{if(event.target.closest('[data-core-bridge]'))workflowSessionLap('Core action · '+workflowBridgeSummary());});document.addEventListener('visibilitychange',()=>{if(document.hidden&&workflowSessionState.phase==='running')workflowSessionStop();});workflowSessionDrive();
workflowBridgeReset();
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