Task Center Status Banner
Complete the status banner in the task center scenario: includes real content, actionable controls, clear state feedback, and responsive layouts.
With JavaScript enabled, you can edit, run, and save this example. The fixed source is as follows:
<!doctype html>
<html lang="en" dir="ltr">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Task Center Status Banner</title>
<style>
:root { --ink:#17241d; --paper:#f3f0e7; --accent:#af4f45; --secondary:#9eb49f; --line:color-mix(in srgb, var(--ink) 18%, transparent); --shadow:0 24px 60px color-mix(in srgb, var(--ink) 16%, transparent); color-scheme:light; }
* { box-sizing:border-box; }
html { min-width:320px; background:var(--paper); }
body { min-height:100vh; margin:0; overflow-x:hidden; color:var(--ink); font-family:"DIN Alternate","Arial Narrow",sans-serif; background:repeating-linear-gradient(135deg,color-mix(in srgb,var(--ink) 5%,transparent) 0 1px,transparent 1px 18px),var(--paper); }
button,input,select,textarea { color:inherit; font:inherit; }
button,[role="button"],input,select,textarea { accent-color:var(--accent); }
button { cursor:pointer; }
button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,[tabindex]:focus-visible { outline:3px solid var(--accent); outline-offset:3px; }
[hidden] { display:none !important; }
@media (max-width:700px) { .mast h1 { line-height:1.08 !important; letter-spacing:-.035em !important; overflow-wrap:anywhere; } }
@media (prefers-reduced-motion:reduce) { *,*::before,*::after { scroll-behavior:auto !important; animation-duration:.01ms !important; animation-iteration-count:1 !important; transition-duration:.01ms !important; } }
.mast{display:flex;justify-content:space-between;border-bottom:6px solid var(--ink);padding-bottom:18px;gap:20px;align-items:flex-end;margin:0 0 22px}.page{width:min(1240px,calc(100% - 28px));margin:auto;padding:34px 0 70px}.scenario{padding:8px 12px;border:2px solid var(--ink);font:900 12px/1 ui-monospace,monospace}.mast h1{font-family:"DIN Condensed","Arial Narrow",sans-serif;font-weight:900;text-transform:uppercase;font-size:clamp(44px,10vw,104px);letter-spacing:-.02em;max-width:1000px;margin:0;line-height:.82}.intro{max-width:720px;font-family:"Arial Narrow",sans-serif;line-height:1.5}.eyebrow{display:inline-block;padding:6px 9px;color:var(--paper);background:var(--accent);font:900 10px/1 ui-monospace,monospace;letter-spacing:.12em}.demo{border-radius:3px;box-shadow:10px 10px 0 var(--accent);position:relative;min-height:400px;overflow:hidden;padding:32px;background:var(--paper)}@media(max-width:700px){.mast{display:grid;grid-template-columns:1fr}.page{width:calc(100% - 16px);padding-top:16px}.demo{padding:14px}}
.panel{padding:30px;border:0;border-radius:42px 12px;background:color-mix(in srgb,var(--secondary) 18%,var(--paper))}.row{display:flex;flex-wrap:wrap;gap:14px;align-items:center}.stack{display:flex;flex-direction:column;gap:20px}.action{min-height:48px;padding:12px 22px;border:0;border-radius:50% 50% 18px 18px;background:color-mix(in srgb,var(--secondary) 42%,transparent);font-weight:800}.action.primary,.action.is-active{color:var(--paper);background:var(--accent)}.muted{color:color-mix(in srgb,var(--ink) 64%,transparent);line-height:1.7}.status{min-height:25px;margin-top:16px;color:var(--accent)}.metric{font-size:clamp(32px,7vw,66px);font-weight:800}.meter{height:11px;border-radius:50%;background:color-mix(in srgb,var(--ink) 10%,transparent)}.meter>i{display:block;height:100%;border-radius:inherit;background:var(--accent)}.chip{padding:8px 12px;border-radius:50%;background:var(--paper)}
.composition-studio{display:grid;gap:14px}.studio-ruler{display:flex;justify-content:space-between;padding:0 4px;color:color-mix(in srgb,var(--ink) 55%,transparent);font:700 11px/1 ui-monospace,monospace;letter-spacing:.14em}.studio-ruler::before{content:"01 / WORKING PROTOTYPE"}.studio-ruler::after{content:"360 · 768 · 1440"}.composition-studio .demo::after{content:"";position:absolute;right:18px;bottom:18px;width:24px;height:24px;border-right:2px solid var(--accent);border-bottom:2px solid var(--accent);pointer-events:none}
.alert-banner-demo{display:grid;gap:22px;max-width:900px;margin:auto}.alert-banner-demo header{max-width:650px}.alert-banner-demo h2{margin:.2em 0}.banner-controls{display:flex;flex-wrap:wrap;gap:8px}.banner-controls button{padding:10px 15px;border:1px solid var(--line);border-radius:9px;background:transparent}.status-banner{--banner-tone:#386bb7;display:grid;grid-template-columns:auto 1fr auto;gap:16px;align-items:center;padding:18px;border:1px solid color-mix(in srgb,var(--banner-tone) 55%,var(--line));border-left:9px solid var(--banner-tone);border-radius:14px;background:color-mix(in srgb,var(--banner-tone) 9%,var(--paper))}.status-banner[data-tone="success"]{--banner-tone:#2d8b64}.status-banner[data-tone="warning"]{--banner-tone:#b56b1d}.status-banner>span{display:grid;width:42px;height:42px;place-items:center;border-radius:50%;color:var(--paper);background:var(--banner-tone);font-size:20px;font-weight:900}.status-banner p{margin:.3em 0 0}.status-banner>button{width:40px;height:40px;border:0;border-radius:50%;background:transparent;font-size:22px}.alert-banner-demo>.action{justify-self:start}.workflow-session{display:grid;gap:14px}.session-command{display:grid;grid-template-columns:1fr auto minmax(170px,.45fr) auto;gap:16px;align-items:end;padding:18px;border-block:4px double var(--ink)}.session-command h2{margin:.2em 0}.session-command output{font:900 clamp(28px,5vw,54px)/1 ui-monospace,monospace}.session-command label{display:grid;grid-template-columns:1fr auto;gap:7px;font-size:12px}.session-command input{grid-column:1/-1;width:100%}#workflowSessionProgress{height:12px;overflow:hidden;border-radius:2px;background:var(--line)}#workflowSessionProgress i{display:block;width:0;height:100%;background:var(--accent)}.session-stage{min-width:0;transition:filter .25s,transform .25s}.session-stage[data-session-phase="running"]{transform:translateY(-3px)}.session-stage[data-session-phase="paused"]{filter:grayscale(.65)}.session-stage[data-session-phase="complete"]{filter:contrast(.78);opacity:.72}.session-log{display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:start}.session-log ol{display:flex;flex-wrap:wrap;gap:7px;padding:0;margin:0;list-style:none}.session-log li{padding:5px 8px;border:1px solid var(--line);font-size:12px}@media(max-width:900px){.session-stage{order:-1}.session-command{grid-template-columns:1fr auto}.session-command label{grid-column:1/-1}.session-log{grid-template-columns:1fr}}
</style>
</head>
<body data-aesthetic="industrial" data-composition="studio">
<main class="page">
<header class="mast"><div><span class="eyebrow">industrial / status banner / BEGINNER</span><h1>Task Center Status Banner</h1><p class="intro">Complete the status banner in the task center scenario: includes real content, actionable controls, clear state feedback, and responsive layouts.</p></div><span class="scenario">Task Center</span></header>
<div class="composition-studio"><div class="studio-ruler" aria-hidden="true"></div><section class="demo" aria-label="Task Center status banner interactive area"><div class="workflow-session"><header class="session-command"><div><span class="eyebrow">Task Center SESSION</span><h2>Task time slot timer</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 task</button></header><div id="workflowSessionProgress" role="progressbar" aria-label="Task Time 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:overlays-feedback-alert-banner --><section class="alert-banner-demo"><header><span class="eyebrow">ALERT BANNER</span><h2>Task Center Status Banner</h2><p>Generate an in-page banner based on the selected state; it will not steal the user’s current focus.</p></header><div class="banner-controls" role="group" aria-label="Banner Type"><button type="button" data-banner-tone="info" data-core-bridge="overlays-feedback-alert-banner">General Reminder</button><button type="button" data-banner-tone="success">Completed status</button><button type="button" data-banner-tone="warning">Risk Alert</button></div><div id="statusBanner" class="status-banner" data-tone="info" role="status"><span id="bannerSymbol" aria-hidden="true">i</span><div><strong id="bannerTitle">Task Center Collaboration</strong><p id="bannerMessage">This is a standard reminder that does not interrupt the current task.</p></div><button id="bannerDismiss" type="button" aria-label="Banner in closed state">×</button></div><button id="bannerRestore" class="action" type="button" hidden>Show banner again</button></section><!-- 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><p id="status" class="status" role="status" aria-live="polite"></p></section></div>
</main>
<script>
'use strict';
const statusOutput = document.querySelector('#status');
const announce = message => { statusOutput.textContent = message; };
/* 11DZ_CORE_SCRIPT_START:overlays-feedback-alert-banner */
const statusBanner=document.querySelector('#statusBanner');const bannerRestore=document.querySelector('#bannerRestore');const bannerContent={info:['i','Task Center Collaboration','This is a standard reminder that does not interrupt the current task.'],success:['✓','Task Center Progress','The current task has been completed. You can continue to the next one.'],warning:['!','Task Center Reminder','Please check the missing information before deciding whether to continue.']};document.querySelectorAll('[data-banner-tone]').forEach(button=>button.addEventListener('click',()=>{const tone=button.dataset.bannerTone;const content=bannerContent[tone];statusBanner.dataset.tone=tone;document.querySelector('#bannerSymbol').textContent=content[0];document.querySelector('#bannerTitle').textContent=content[1];document.querySelector('#bannerMessage').textContent=content[2];statusBanner.hidden=false;bannerRestore.hidden=true;announce('Shown'+button.textContent);}));document.querySelector('#bannerDismiss').addEventListener('click',()=>{statusBanner.hidden=true;bannerRestore.hidden=false;bannerRestore.focus();announce('Status banner dismissed');});bannerRestore.addEventListener('click',()=>{statusBanner.hidden=false;bannerRestore.hidden=true;document.querySelector('#bannerDismiss').focus();announce('Status Banner Restored');});
/* 11DZ_CORE_SCRIPT_END */
const workflowBridgeSpec={"name":"overlays-feedback-alert-banner","selector":"[data-core-bridge=\"overlays-feedback-alert-banner\"]","mode":"click","key":"Enter"};const workflowBridgeCore=document.querySelector('#workflowCore');const workflowBridgeControl=workflowBridgeCore.querySelector(workflowBridgeSpec.selector);if(!workflowBridgeControl)throw new Error('Missing core bridge: '+workflowBridgeSpec.name);const workflowBridgeControlledId=workflowBridgeControl.getAttribute('aria-controls');const workflowBridgeControlled=workflowBridgeControlledId?document.getElementById(workflowBridgeControlledId):null;workflowBridgeCore.dataset.workflowBridge=workflowBridgeSpec.name;workflowBridgeCore.dataset.workflowVersion='0';function workflowBridgeSerialize(){const visualNode=workflowBridgeCore.firstElementChild||workflowBridgeCore;const visual=getComputedStyle(visualNode);const outputs=[...workflowBridgeCore.querySelectorAll('output,[role="status"],[aria-live],meter,progress')].map(node=>node.textContent.trim()+'|'+node.getAttribute('aria-valuenow')+'|'+node.getAttribute('value'));const canvas=[...workflowBridgeCore.querySelectorAll('canvas')].map(node=>{try{return node.toDataURL().slice(-160);}catch{return 'canvas-unavailable';}});return JSON.stringify({html:workflowBridgeCore.innerHTML,status:statusOutput.textContent,outputs,canvas,visual:[visual.display,visual.visibility,visual.opacity,visual.transform,visual.filter,visual.backgroundColor,visual.width,visual.height],scroll:workflowBridgeSpec.mode==='scroll'?workflowBridgeControl.scrollTop:null});}let workflowBridgeLastEffect=workflowBridgeSerialize();function workflowBridgeSummary(){const label=(workflowBridgeControl.getAttribute('aria-label')||workflowBridgeControl.textContent||workflowBridgeControl.value||workflowBridgeSpec.name).trim().replace(/\s+/g,' ').slice(0,72);return label+' · Core Version '+workflowBridgeCore.dataset.workflowVersion;}function workflowBridgeCommit(){const effect=workflowBridgeSerialize();if(effect===workflowBridgeLastEffect)return {changed:false,summary:workflowBridgeSummary()};workflowBridgeLastEffect=effect;workflowBridgeCore.dataset.workflowVersion=String(Number(workflowBridgeCore.dataset.workflowVersion||0)+1);return {changed:true,summary:workflowBridgeSummary()};}function workflowBridgeScheduleCommit(){queueMicrotask(workflowBridgeCommit);setTimeout(workflowBridgeCommit,0);}workflowBridgeControl.addEventListener("click",workflowBridgeScheduleCommit);const workflowBridgeStateTargets=new Set(workflowBridgeCore.querySelectorAll('dialog'));if(workflowBridgeControlled&&workflowBridgeCore.contains(workflowBridgeControlled))workflowBridgeStateTargets.add(workflowBridgeControlled);workflowBridgeStateTargets.forEach(target=>['close','cancel','toggle'].forEach(eventName=>target.addEventListener(eventName,workflowBridgeScheduleCommit)));function workflowBridgeActivate(){workflowBridgeControl.focus();workflowBridgeControl.click();const result=workflowBridgeCommit();setTimeout(workflowBridgeCommit,0);return result;}function workflowBridgeReset(){workflowBridgeCore.dataset.workflowVersion='0';workflowBridgeLastEffect=workflowBridgeSerialize();}
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?'Task Shift 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('The task period 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();
</script>
</body>
</html>