12 CSS Steppers 01 / 12
CSS Multi-Step Form Wizard Progress Indicator
A 4-step account-creation wizard with animated node states, gradient connector lines, scoped pulse keyframe on the active step, and a checkmark success panel — all navigated by prev/next JS.
This is a full-page demo — interact inside the frame above, or open it in the playground for the full-screen experience.
The code
<div class="stp-01">
<div class="stp-01__card">
<div class="stp-01__header">
<div class="stp-01__title">Create Your Account</div>
<div class="stp-01__sub">Complete all steps to get started</div>
</div>
<div class="stp-01__steps" id="stp-01-steps">
<div class="stp-01__step is-done" data-step="1">
<div class="stp-01__node">1</div>
<span class="stp-01__node-label">Profile</span>
</div>
<div class="stp-01__step is-active" data-step="2">
<div class="stp-01__node">2</div>
<span class="stp-01__node-label">Details</span>
</div>
<div class="stp-01__step" data-step="3">
<div class="stp-01__node">3</div>
<span class="stp-01__node-label">Billing</span>
</div>
<div class="stp-01__step" data-step="4">
<div class="stp-01__node">4</div>
<span class="stp-01__node-label">Review</span>
</div>
</div>
<!-- Panel 1 -->
<div class="stp-01__panel" data-panel="1">
<div class="stp-01__panel-title">Personal Profile</div>
<div class="stp-01__row">
<div class="stp-01__field"><label class="stp-01__label">First Name</label><input class="stp-01__input" placeholder="Alex" value="Alex"></div>
<div class="stp-01__field"><label class="stp-01__label">Last Name</label><input class="stp-01__input" placeholder="Morgan" value="Morgan"></div>
</div>
<div class="stp-01__field"><label class="stp-01__label">Email Address</label><input class="stp-01__input" placeholder="[email protected]" value="[email protected]"></div>
</div>
<!-- Panel 2 -->
<div class="stp-01__panel is-active" data-panel="2">
<div class="stp-01__panel-title">Account Details</div>
<div class="stp-01__field"><label class="stp-01__label">Username</label><input class="stp-01__input" placeholder="@alexmorgan"></div>
<div class="stp-01__field"><label class="stp-01__label">Role</label><input class="stp-01__input" placeholder="Frontend Engineer"></div>
<div class="stp-01__field"><label class="stp-01__label">Company</label><input class="stp-01__input" placeholder="Acme Corp"></div>
</div>
<!-- Panel 3 -->
<div class="stp-01__panel" data-panel="3">
<div class="stp-01__panel-title">Billing Information</div>
<div class="stp-01__field"><label class="stp-01__label">Card Number</label><input class="stp-01__input" placeholder="4242 4242 4242 4242"></div>
<div class="stp-01__row">
<div class="stp-01__field"><label class="stp-01__label">Expiry</label><input class="stp-01__input" placeholder="MM / YY"></div>
<div class="stp-01__field"><label class="stp-01__label">CVV</label><input class="stp-01__input" placeholder="•••"></div>
</div>
</div>
<!-- Panel 4 -->
<div class="stp-01__panel" data-panel="4">
<div class="stp-01__panel-title">Review & Confirm</div>
<div class="stp-01__summary">
<div class="stp-01__summary-item"><div class="stp-01__summary-key">Name</div><div class="stp-01__summary-val">Alex Morgan</div></div>
<div class="stp-01__summary-item"><div class="stp-01__summary-key">Email</div><div class="stp-01__summary-val">[email protected]</div></div>
<div class="stp-01__summary-item"><div class="stp-01__summary-key">Username</div><div class="stp-01__summary-val">@alexmorgan</div></div>
<div class="stp-01__summary-item"><div class="stp-01__summary-key">Plan</div><div class="stp-01__summary-val">Pro · $29/mo</div></div>
</div>
</div>
<!-- Success -->
<div class="stp-01__panel" data-panel="5">
<div class="stp-01__success">
<div class="stp-01__success-icon">✓</div>
<div class="stp-01__success-title">Account Created!</div>
<div class="stp-01__success-msg">Welcome aboard. Check your email to verify your account.</div>
</div>
</div>
<div class="stp-01__nav" id="stp-01-nav">
<div class="stp-01__fraction">Step <span id="stp-01-cur">2</span> of <span>4</span></div>
<button class="stp-01__btn stp-01__btn--back" id="stp-01-back">← Back</button>
<button class="stp-01__btn stp-01__btn--next" id="stp-01-next">Continue →</button>
</div>
</div>
</div> <div class="stp-01">
<div class="stp-01__card">
<div class="stp-01__header">
<div class="stp-01__title">Create Your Account</div>
<div class="stp-01__sub">Complete all steps to get started</div>
</div>
<div class="stp-01__steps" id="stp-01-steps">
<div class="stp-01__step is-done" data-step="1">
<div class="stp-01__node">1</div>
<span class="stp-01__node-label">Profile</span>
</div>
<div class="stp-01__step is-active" data-step="2">
<div class="stp-01__node">2</div>
<span class="stp-01__node-label">Details</span>
</div>
<div class="stp-01__step" data-step="3">
<div class="stp-01__node">3</div>
<span class="stp-01__node-label">Billing</span>
</div>
<div class="stp-01__step" data-step="4">
<div class="stp-01__node">4</div>
<span class="stp-01__node-label">Review</span>
</div>
</div>
<!-- Panel 1 -->
<div class="stp-01__panel" data-panel="1">
<div class="stp-01__panel-title">Personal Profile</div>
<div class="stp-01__row">
<div class="stp-01__field"><label class="stp-01__label">First Name</label><input class="stp-01__input" placeholder="Alex" value="Alex"></div>
<div class="stp-01__field"><label class="stp-01__label">Last Name</label><input class="stp-01__input" placeholder="Morgan" value="Morgan"></div>
</div>
<div class="stp-01__field"><label class="stp-01__label">Email Address</label><input class="stp-01__input" placeholder="[email protected]" value="[email protected]"></div>
</div>
<!-- Panel 2 -->
<div class="stp-01__panel is-active" data-panel="2">
<div class="stp-01__panel-title">Account Details</div>
<div class="stp-01__field"><label class="stp-01__label">Username</label><input class="stp-01__input" placeholder="@alexmorgan"></div>
<div class="stp-01__field"><label class="stp-01__label">Role</label><input class="stp-01__input" placeholder="Frontend Engineer"></div>
<div class="stp-01__field"><label class="stp-01__label">Company</label><input class="stp-01__input" placeholder="Acme Corp"></div>
</div>
<!-- Panel 3 -->
<div class="stp-01__panel" data-panel="3">
<div class="stp-01__panel-title">Billing Information</div>
<div class="stp-01__field"><label class="stp-01__label">Card Number</label><input class="stp-01__input" placeholder="4242 4242 4242 4242"></div>
<div class="stp-01__row">
<div class="stp-01__field"><label class="stp-01__label">Expiry</label><input class="stp-01__input" placeholder="MM / YY"></div>
<div class="stp-01__field"><label class="stp-01__label">CVV</label><input class="stp-01__input" placeholder="•••"></div>
</div>
</div>
<!-- Panel 4 -->
<div class="stp-01__panel" data-panel="4">
<div class="stp-01__panel-title">Review & Confirm</div>
<div class="stp-01__summary">
<div class="stp-01__summary-item"><div class="stp-01__summary-key">Name</div><div class="stp-01__summary-val">Alex Morgan</div></div>
<div class="stp-01__summary-item"><div class="stp-01__summary-key">Email</div><div class="stp-01__summary-val">[email protected]</div></div>
<div class="stp-01__summary-item"><div class="stp-01__summary-key">Username</div><div class="stp-01__summary-val">@alexmorgan</div></div>
<div class="stp-01__summary-item"><div class="stp-01__summary-key">Plan</div><div class="stp-01__summary-val">Pro · $29/mo</div></div>
</div>
</div>
<!-- Success -->
<div class="stp-01__panel" data-panel="5">
<div class="stp-01__success">
<div class="stp-01__success-icon">✓</div>
<div class="stp-01__success-title">Account Created!</div>
<div class="stp-01__success-msg">Welcome aboard. Check your email to verify your account.</div>
</div>
</div>
<div class="stp-01__nav" id="stp-01-nav">
<div class="stp-01__fraction">Step <span id="stp-01-cur">2</span> of <span>4</span></div>
<button class="stp-01__btn stp-01__btn--back" id="stp-01-back">← Back</button>
<button class="stp-01__btn stp-01__btn--next" id="stp-01-next">Continue →</button>
</div>
</div>
</div>.stp-01,.stp-01 *,.stp-01 *::before,.stp-01 *::after{box-sizing:border-box;margin:0;padding:0}
.stp-01 ::selection{background:#7c3aed;color:#fff}
.stp-01{
--bg:#0d0d1a;
--card:#16162a;
--border:#2a2a4a;
--purple:#7c3aed;
--violet:#a855f7;
--pink:#ec4899;
--white:#f0f0ff;
--muted:#6b6b9a;
--success:#10b981;
font-family:'Segoe UI',system-ui,sans-serif;
background:var(--bg);
min-height:100vh;
display:flex;align-items:center;justify-content:center;
padding:40px 20px;
}
.stp-01__card{
background:var(--card);
border:1px solid var(--border);
border-radius:24px;
padding:48px 40px;
max-width:640px;
width:100%;
box-shadow:0 32px 80px rgba(124,58,237,.15),0 0 0 1px rgba(124,58,237,.1);
}
.stp-01__header{text-align:center;margin-bottom:40px}
.stp-01__title{font-size:22px;font-weight:700;color:var(--white);letter-spacing:-.02em}
.stp-01__sub{font-size:13px;color:var(--muted);margin-top:6px}
/* stepper track */
.stp-01__steps{display:flex;align-items:center;margin-bottom:44px;position:relative}
.stp-01__step{display:flex;flex-direction:column;align-items:center;flex:1;position:relative;z-index:1}
.stp-01__node{
width:44px;height:44px;border-radius:50%;
display:flex;align-items:center;justify-content:center;
font-size:14px;font-weight:700;
border:2px solid var(--border);
background:var(--card);
color:var(--muted);
transition:all .4s cubic-bezier(.34,1.56,.64,1);
position:relative;
}
.stp-01__node-label{font-size:11px;color:var(--muted);margin-top:10px;letter-spacing:.06em;text-transform:uppercase;text-align:center;transition:color .3s}
/* connector lines */
.stp-01__step:not(:last-child)::after{
content:'';
position:absolute;
top:22px;left:calc(50% + 22px);
width:calc(100% - 44px);
height:2px;
background:var(--border);
z-index:0;
}
.stp-01__step.is-done::after{background:linear-gradient(90deg,var(--purple),var(--violet))}
/* states */
.stp-01__step.is-done .stp-01__node{
background:linear-gradient(135deg,var(--purple),var(--violet));
border-color:var(--violet);
color:#fff;
box-shadow:0 0 20px rgba(124,58,237,.5);
}
.stp-01__step.is-done .stp-01__node::after{
content:'✓';
position:absolute;
font-size:16px;
}
.stp-01__step.is-done .stp-01__node-label{color:var(--violet)}
.stp-01__step.is-active .stp-01__node{
background:transparent;
border-color:var(--purple);
border-width:2px;
color:var(--purple);
box-shadow:0 0 0 6px rgba(124,58,237,.15),0 0 24px rgba(124,58,237,.3);
animation:stp-01-pulse 2s ease-in-out infinite;
}
.stp-01__step.is-active .stp-01__node-label{color:var(--white)}
@keyframes stp-01-pulse{
0%,100%{box-shadow:0 0 0 6px rgba(124,58,237,.15),0 0 24px rgba(124,58,237,.3)}
50%{box-shadow:0 0 0 10px rgba(124,58,237,.08),0 0 32px rgba(124,58,237,.4)}
}
/* form area */
.stp-01__panel{display:none}
.stp-01__panel.is-active{display:block}
.stp-01__panel-title{font-size:18px;font-weight:600;color:var(--white);margin-bottom:20px}
.stp-01__field{margin-bottom:16px}
.stp-01__label{font-size:12px;color:var(--muted);letter-spacing:.06em;text-transform:uppercase;margin-bottom:6px;display:block}
.stp-01__input{
width:100%;padding:12px 16px;
background:rgba(255,255,255,.04);
border:1px solid var(--border);
border-radius:10px;
color:var(--white);
font-size:14px;
outline:none;
transition:border-color .2s,box-shadow .2s;
}
.stp-01__input::placeholder{color:var(--muted)}
.stp-01__input:focus{border-color:var(--purple);box-shadow:0 0 0 3px rgba(124,58,237,.2)}
.stp-01__row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
/* summary */
.stp-01__summary{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.stp-01__summary-item{
background:rgba(124,58,237,.08);
border:1px solid rgba(124,58,237,.2);
border-radius:10px;padding:14px 16px;
}
.stp-01__summary-key{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.stp-01__summary-val{font-size:14px;color:var(--white);font-weight:600;margin-top:4px}
/* navigation */
.stp-01__nav{display:flex;justify-content:space-between;align-items:center;margin-top:32px;gap:12px}
.stp-01__btn{
padding:12px 28px;border-radius:10px;
font-size:14px;font-weight:600;cursor:pointer;
border:none;transition:all .2s;
}
.stp-01__btn--back{
background:transparent;
border:1px solid var(--border);
color:var(--muted);
}
.stp-01__btn--back:hover{border-color:var(--purple);color:var(--white)}
.stp-01__btn--next{
background:linear-gradient(135deg,var(--purple),var(--violet));
color:#fff;
box-shadow:0 4px 20px rgba(124,58,237,.4);
margin-left:auto;
}
.stp-01__btn--next:hover{transform:translateY(-1px);box-shadow:0 8px 28px rgba(124,58,237,.5)}
.stp-01__btn--submit{
background:linear-gradient(135deg,var(--success),#34d399);
color:#fff;
box-shadow:0 4px 20px rgba(16,185,129,.4);
margin-left:auto;
}
/* success */
.stp-01__success{text-align:center;padding:20px 0}
.stp-01__success-icon{
width:72px;height:72px;border-radius:50%;
background:linear-gradient(135deg,var(--success),#34d399);
display:flex;align-items:center;justify-content:center;
font-size:32px;margin:0 auto 20px;
box-shadow:0 0 40px rgba(16,185,129,.4);
animation:stp-01-pop .5s cubic-bezier(.34,1.56,.64,1);
}
@keyframes stp-01-pop{from{transform:scale(0);opacity:0}to{transform:scale(1);opacity:1}}
.stp-01__success-title{font-size:22px;font-weight:700;color:var(--white);margin-bottom:8px}
.stp-01__success-msg{font-size:14px;color:var(--muted)}
/* progress fraction */
.stp-01__fraction{font-size:12px;color:var(--muted)}
.stp-01__fraction span{color:var(--violet);font-weight:700}
@media (prefers-reduced-motion:reduce){
.stp-01__step.is-active .stp-01__node{animation:none}
.stp-01__success-icon{animation:none}
} .stp-01,.stp-01 *,.stp-01 *::before,.stp-01 *::after{box-sizing:border-box;margin:0;padding:0}
.stp-01 ::selection{background:#7c3aed;color:#fff}
.stp-01{
--bg:#0d0d1a;
--card:#16162a;
--border:#2a2a4a;
--purple:#7c3aed;
--violet:#a855f7;
--pink:#ec4899;
--white:#f0f0ff;
--muted:#6b6b9a;
--success:#10b981;
font-family:'Segoe UI',system-ui,sans-serif;
background:var(--bg);
min-height:100vh;
display:flex;align-items:center;justify-content:center;
padding:40px 20px;
}
.stp-01__card{
background:var(--card);
border:1px solid var(--border);
border-radius:24px;
padding:48px 40px;
max-width:640px;
width:100%;
box-shadow:0 32px 80px rgba(124,58,237,.15),0 0 0 1px rgba(124,58,237,.1);
}
.stp-01__header{text-align:center;margin-bottom:40px}
.stp-01__title{font-size:22px;font-weight:700;color:var(--white);letter-spacing:-.02em}
.stp-01__sub{font-size:13px;color:var(--muted);margin-top:6px}
/* stepper track */
.stp-01__steps{display:flex;align-items:center;margin-bottom:44px;position:relative}
.stp-01__step{display:flex;flex-direction:column;align-items:center;flex:1;position:relative;z-index:1}
.stp-01__node{
width:44px;height:44px;border-radius:50%;
display:flex;align-items:center;justify-content:center;
font-size:14px;font-weight:700;
border:2px solid var(--border);
background:var(--card);
color:var(--muted);
transition:all .4s cubic-bezier(.34,1.56,.64,1);
position:relative;
}
.stp-01__node-label{font-size:11px;color:var(--muted);margin-top:10px;letter-spacing:.06em;text-transform:uppercase;text-align:center;transition:color .3s}
/* connector lines */
.stp-01__step:not(:last-child)::after{
content:'';
position:absolute;
top:22px;left:calc(50% + 22px);
width:calc(100% - 44px);
height:2px;
background:var(--border);
z-index:0;
}
.stp-01__step.is-done::after{background:linear-gradient(90deg,var(--purple),var(--violet))}
/* states */
.stp-01__step.is-done .stp-01__node{
background:linear-gradient(135deg,var(--purple),var(--violet));
border-color:var(--violet);
color:#fff;
box-shadow:0 0 20px rgba(124,58,237,.5);
}
.stp-01__step.is-done .stp-01__node::after{
content:'✓';
position:absolute;
font-size:16px;
}
.stp-01__step.is-done .stp-01__node-label{color:var(--violet)}
.stp-01__step.is-active .stp-01__node{
background:transparent;
border-color:var(--purple);
border-width:2px;
color:var(--purple);
box-shadow:0 0 0 6px rgba(124,58,237,.15),0 0 24px rgba(124,58,237,.3);
animation:stp-01-pulse 2s ease-in-out infinite;
}
.stp-01__step.is-active .stp-01__node-label{color:var(--white)}
@keyframes stp-01-pulse{
0%,100%{box-shadow:0 0 0 6px rgba(124,58,237,.15),0 0 24px rgba(124,58,237,.3)}
50%{box-shadow:0 0 0 10px rgba(124,58,237,.08),0 0 32px rgba(124,58,237,.4)}
}
/* form area */
.stp-01__panel{display:none}
.stp-01__panel.is-active{display:block}
.stp-01__panel-title{font-size:18px;font-weight:600;color:var(--white);margin-bottom:20px}
.stp-01__field{margin-bottom:16px}
.stp-01__label{font-size:12px;color:var(--muted);letter-spacing:.06em;text-transform:uppercase;margin-bottom:6px;display:block}
.stp-01__input{
width:100%;padding:12px 16px;
background:rgba(255,255,255,.04);
border:1px solid var(--border);
border-radius:10px;
color:var(--white);
font-size:14px;
outline:none;
transition:border-color .2s,box-shadow .2s;
}
.stp-01__input::placeholder{color:var(--muted)}
.stp-01__input:focus{border-color:var(--purple);box-shadow:0 0 0 3px rgba(124,58,237,.2)}
.stp-01__row{display:grid;grid-template-columns:1fr 1fr;gap:12px}
/* summary */
.stp-01__summary{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.stp-01__summary-item{
background:rgba(124,58,237,.08);
border:1px solid rgba(124,58,237,.2);
border-radius:10px;padding:14px 16px;
}
.stp-01__summary-key{font-size:11px;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.stp-01__summary-val{font-size:14px;color:var(--white);font-weight:600;margin-top:4px}
/* navigation */
.stp-01__nav{display:flex;justify-content:space-between;align-items:center;margin-top:32px;gap:12px}
.stp-01__btn{
padding:12px 28px;border-radius:10px;
font-size:14px;font-weight:600;cursor:pointer;
border:none;transition:all .2s;
}
.stp-01__btn--back{
background:transparent;
border:1px solid var(--border);
color:var(--muted);
}
.stp-01__btn--back:hover{border-color:var(--purple);color:var(--white)}
.stp-01__btn--next{
background:linear-gradient(135deg,var(--purple),var(--violet));
color:#fff;
box-shadow:0 4px 20px rgba(124,58,237,.4);
margin-left:auto;
}
.stp-01__btn--next:hover{transform:translateY(-1px);box-shadow:0 8px 28px rgba(124,58,237,.5)}
.stp-01__btn--submit{
background:linear-gradient(135deg,var(--success),#34d399);
color:#fff;
box-shadow:0 4px 20px rgba(16,185,129,.4);
margin-left:auto;
}
/* success */
.stp-01__success{text-align:center;padding:20px 0}
.stp-01__success-icon{
width:72px;height:72px;border-radius:50%;
background:linear-gradient(135deg,var(--success),#34d399);
display:flex;align-items:center;justify-content:center;
font-size:32px;margin:0 auto 20px;
box-shadow:0 0 40px rgba(16,185,129,.4);
animation:stp-01-pop .5s cubic-bezier(.34,1.56,.64,1);
}
@keyframes stp-01-pop{from{transform:scale(0);opacity:0}to{transform:scale(1);opacity:1}}
.stp-01__success-title{font-size:22px;font-weight:700;color:var(--white);margin-bottom:8px}
.stp-01__success-msg{font-size:14px;color:var(--muted)}
/* progress fraction */
.stp-01__fraction{font-size:12px;color:var(--muted)}
.stp-01__fraction span{color:var(--violet);font-weight:700}
@media (prefers-reduced-motion:reduce){
.stp-01__step.is-active .stp-01__node{animation:none}
.stp-01__success-icon{animation:none}
}(function(){
const steps=document.querySelectorAll('.stp-01__step');
const panels=document.querySelectorAll('.stp-01__panel');
const btnNext=document.getElementById('stp-01-next');
const btnBack=document.getElementById('stp-01-back');
const curEl=document.getElementById('stp-01-cur');
const nav=document.getElementById('stp-01-nav');
let cur=2;
const total=4;
function update(){
steps.forEach((s,i)=>{
s.classList.remove('is-done','is-active');
if(i+1<cur) s.classList.add('is-done');
else if(i+1===cur) s.classList.add('is-active');
});
panels.forEach((p,i)=>{
p.classList.remove('is-active');
if(parseInt(p.dataset.panel)===cur||(cur>total&&parseInt(p.dataset.panel)===5)) p.classList.add('is-active');
});
curEl.textContent=Math.min(cur,total);
btnBack.style.display=cur<=1?'none':'';
if(cur>total){
nav.style.display='none';
} else if(cur===total){
btnNext.textContent='Submit ✓';
btnNext.className='stp-01__btn stp-01__btn--submit';
} else {
btnNext.textContent='Continue →';
btnNext.className='stp-01__btn stp-01__btn--next';
}
}
btnNext.addEventListener('click',()=>{cur=Math.min(cur+1,total+1);update();});
btnBack.addEventListener('click',()=>{cur=Math.max(cur-1,1);update();});
update();
})(); (function(){
const steps=document.querySelectorAll('.stp-01__step');
const panels=document.querySelectorAll('.stp-01__panel');
const btnNext=document.getElementById('stp-01-next');
const btnBack=document.getElementById('stp-01-back');
const curEl=document.getElementById('stp-01-cur');
const nav=document.getElementById('stp-01-nav');
let cur=2;
const total=4;
function update(){
steps.forEach((s,i)=>{
s.classList.remove('is-done','is-active');
if(i+1<cur) s.classList.add('is-done');
else if(i+1===cur) s.classList.add('is-active');
});
panels.forEach((p,i)=>{
p.classList.remove('is-active');
if(parseInt(p.dataset.panel)===cur||(cur>total&&parseInt(p.dataset.panel)===5)) p.classList.add('is-active');
});
curEl.textContent=Math.min(cur,total);
btnBack.style.display=cur<=1?'none':'';
if(cur>total){
nav.style.display='none';
} else if(cur===total){
btnNext.textContent='Submit ✓';
btnNext.className='stp-01__btn stp-01__btn--submit';
} else {
btnNext.textContent='Continue →';
btnNext.className='stp-01__btn stp-01__btn--next';
}
}
btnNext.addEventListener('click',()=>{cur=Math.min(cur+1,total+1);update();});
btnBack.addEventListener('click',()=>{cur=Math.max(cur-1,1);update();});
update();
})();How this works
The stepper track is a flex row of .stp-01__step elements. Connector lines are drawn with an ::after pseudo-element on every non-last step: left: calc(50% + 22px) positions it flush to the right edge of the node circle, and width: calc(100% - 44px) fills the gap to the next node. When a step receives .is-done its connector switches from the border colour to a linear-gradient(90deg, purple, violet).
The active node runs @keyframes stp-01-pulse — a two-keyframe box-shadow oscillation — to draw the eye. JS maintains a cur integer and on every click calls update() which strips all state classes and re-applies them based on index, shows the matching panel, and swaps the Next button to a green Submit on step 4.
Customize
- Swap the accent from purple to any hue by editing
--purpleand--violetCSS variables at.stp-01. - Add a fifth step by inserting a new
.stp-01__stepnode in HTML and a matchingdata-panel="5"content div; the JS loop reads the DOM count automatically. - Change the pulse speed by editing
animation-duration: 2son.stp-01__step.is-active .stp-01__node. - Replace the number labels with SVG icons inside each
.stp-01__node— the flex centering keeps them aligned at any size. - Increase node size to
56pxand adjusttop: 28pxon the::afterconnector to keep lines centred.
Watch out for
- The
::afterconnector is on the step element, not between steps — if you change node width you must update bothleftandwidthin the connector rule. - Panels are hidden with
display:noneso screen readers skip inactive steps; addaria-hiddenfor full accessibility. - The success panel is panel 5 but only 4 steps exist in the track — the JS maps
cur > totalto panel 5, so never add a 5th step node without updating the total constant.
Browser support
| Chrome | Safari | Firefox | Edge |
|---|---|---|---|
| 88+ | 14+ | 78+ | 88+ |
All features use baseline CSS — no conic-gradient or container queries required.