City Magazine Text Mask Effect
Complete a text masking effect for a city magazine scenario: includes real content, interactive controls, clear status feedback, and responsive layouts.
With JavaScript enabled, you can edit, run, and save this example. The fixed source is as follows:
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<title>City Magazine Text Mask Effect</title>
<style>
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.panel{padding:20px;border:1px dashed var(--secondary);border-radius:8px;background:color-mix(in srgb,var(--paper) 92%,#000)}.stack{display:grid;gap:10px}.row{display:flex;flex-wrap:wrap;gap:7px}.action{min-height:40px;padding:8px 12px;border:1px solid var(--secondary);border-radius:5px;color:var(--ink);background:transparent;font:700 12px/1 ui-monospace,monospace}.action.primary,.action.is-active{color:var(--paper);background:var(--accent)}.status{min-height:22px;color:var(--secondary);font:700 12px/1.5 ui-monospace,monospace}.status::before{content:"status: "}.metric{font:800 clamp(28px,6vw,56px)/1 ui-monospace,monospace}.muted{opacity:.64;font-family:ui-monospace,monospace}.meter{height:8px;background:repeating-linear-gradient(90deg,var(--line) 0 8px,transparent 8px 10px)}.meter>i{display:block;height:100%;background:var(--secondary)}.chip{padding:4px 7px;border:1px solid var(--secondary);font:700 10px/1 ui-monospace,monospace}
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</style>
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<body data-aesthetic="dashboard" data-composition="field-index">
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<header class="mast"><div><span class="eyebrow">dashboard / text mask effect / INTERMEDIATE</span><h1>City Magazine Text Mask Effect</h1><p class="intro">Complete a text masking effect for a city magazine scenario: includes real content, interactive controls, clear status feedback, and responsive layouts.</p></div><span class="scenario">City Magazine</span></header>
<div class="composition-index"><section class="demo" aria-label="City magazine text mask effect interactivity area"><div class="workflow-session"><header class="session-command"><div><span class="eyebrow">City Magazine SESSION</span><h2>Magazine deadline 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 Copyediting</button></header><div id="workflowSessionProgress" role="progressbar" aria-label="Magazine deadline 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:typography-text-text-mask --><div class="text-mask-lab"><header class="mask-controls panel"><div><span class="eyebrow">TEXT MASK</span><h2>Text mask effect</h2></div><label>Gradient angle <input id="maskAngle" type="range" min="0" max="360" value="125" data-core-bridge="typography-text-text-mask"><output id="maskAngleValue">125°</output></label><div class="row"><button id="maskPalette" class="action" type="button">Switch Color Spectrum</button><button id="maskPause" class="action" type="button" aria-pressed="false">Pause flow</button></div></header><section class="mask-stage" aria-label="City Magazine Text Mask Preview"><p>City Magazine</p><h3 id="maskedHeading">Let color flow only inside the text</h3><small>The original text remains in the document and can be selected, zoomed, and read by assistive technologies.</small></section></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><p id="status" class="status" role="status" aria-live="polite"></p></section><aside class="index-mark" aria-hidden="true"><strong>05</strong><span>City Magazine FIELD INDEX</span></aside></div>
</main>
<script>
'use strict';
const statusOutput = document.querySelector('#status');
const announce = message => { statusOutput.textContent = message; };
/* 11DZ_CORE_SCRIPT_START:typography-text-text-mask */
const maskedHeading=document.querySelector('#maskedHeading');const maskAngle=document.querySelector('#maskAngle');let maskPaletteIndex=0;const maskPalettes=[['#ff7a59','#67e8f9','#f9e27d'],['#b8f2e6','#ffa69e','#faf3dd'],['#c4b5fd','#f0abfc','#93c5fd']];function renderMaskAngle(){maskedHeading.style.setProperty('--mask-angle',maskAngle.value+'deg');document.querySelector('#maskAngleValue').textContent=maskAngle.value+'°';announce('Gradient angle '+maskAngle.value+' degree');}maskAngle.addEventListener('input',renderMaskAngle);document.querySelector('#maskPalette').addEventListener('click',()=>{maskPaletteIndex=(maskPaletteIndex+1)%maskPalettes.length;maskPalettes[maskPaletteIndex].forEach((color,index)=>maskedHeading.style.setProperty('--mask-'+String.fromCharCode(97+index),color));announce('Text color spectrum switched');});document.querySelector('#maskPause').addEventListener('click',event=>{const paused=maskedHeading.classList.toggle('is-paused');event.currentTarget.textContent=paused?'Keep flowing':'Pause flow';event.currentTarget.setAttribute('aria-pressed',String(paused));announce(paused?'Text mask paused':'Text mask keeps flowing');});renderMaskAngle();
/* 11DZ_CORE_SCRIPT_END */
const workflowBridgeSpec={"name":"typography-text-text-mask","selector":"[data-core-bridge=\"typography-text-text-mask\"]","mode":"range","key":"ArrowRight"};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("input",workflowBridgeScheduleCommit);workflowBridgeControl.addEventListener('change',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();const step=Number(workflowBridgeControl.step)||1;const min=workflowBridgeControl.min===''?-Infinity:Number(workflowBridgeControl.min);const max=workflowBridgeControl.max===''?Infinity:Number(workflowBridgeControl.max);let next=Math.min(max,Math.max(min,(Number(workflowBridgeControl.value)||0)+step));if(next===Number(workflowBridgeControl.value))next=Math.max(min,Number(workflowBridgeControl.value)-step);workflowBridgeControl.value=String(next);workflowBridgeControl.dispatchEvent(new Event('input',{bubbles:true}));workflowBridgeControl.dispatchEvent(new Event('change',{bubbles:true}));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?'Magazine closing 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('Magazine deadline 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>
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