Split-Flap Board

Departure board flipping characters to the word

How to use it

Paste the HTML where the numbers & charts should appear.
Add the CSS to your stylesheet. All classes are prefixed, so nothing clashes with your own styles.
Add the JavaScript and call init() with the element that contains the HTML.

<!-- Split-Flap Board · NedDev · eigen werk. -->
<div class="jouw-container">
<div class="sfb" data-text="DEPARTURE"></div>
</div>

/* Split-Flap Board · NedDev · eigen werk. */
.sfb{display:flex;gap:4px;justify-content:center;font:800 clamp(18px,4vw,38px)/1 'JetBrains Mono',monospace}
.sfb-cell{display:inline-flex;align-items:center;justify-content:center;width:1.1em;height:1.5em;background:#0a0a0a;color:#fff;border-radius:4px;position:relative;overflow:hidden}
.sfb-cell.on{color:#F5480F}

// Split-Flap Board · NedDev · eigen werk.
// root = het element waarin de HTML staat
function init(root){
root=root.querySelector('.sfb')||root;var txt=root.dataset.text||'BOARD';root.textContent='';var glyphs='ABCDEFGHIJKLMNOPQRSTUVWXYZ ';var reduce=matchMedia('(prefers-reduced-motion:reduce)').matches;var cells=[];txt.split('').forEach(function(ch){var c=document.createElement('span');c.className='sfb-cell';c.textContent=ch===' '?'\u00a0':ch;root.appendChild(c);cells.push({el:c,target:ch});});if(reduce){cells.forEach(function(c){c.el.textContent=c.target===' '?'\u00a0':c.target;c.el.classList.add('on');});return;}cells.forEach(function(c,i){var steps=8+i*3,n=0;var iv=setInterval(function(){n++;if(n>=steps){clearInterval(iv);c.el.textContent=c.target===' '?'\u00a0':c.target;c.el.classList.add('on');return;}c.el.textContent=glyphs[Math.floor(Math.random()*glyphs.length)];},55);});
}
init(document.querySelector('.jouw-container'));

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