How to Create: Multi-step Form

Learn how to create a multi-step form.

Form Wizard - Multi-step Form:

Try It Yourself

Step 1 - Add HTML:

<form id="regForm" action="">
<h1>Register:</h1>
<!-- Each step in the form has a "tab": -->
<div class="tab">Name:</div>
  <p><input placeholder="First name..." oninput="this.className = ''"></p>
  <p><input placeholder="Last name..." oninput="this.className = ''"></p>
</div>
<div class="tab">Contact Info:</div>
  <p><input placeholder="E-mail..." oninput="this.className = ''"></p>
  <p><input placeholder="Phone..." oninput="this.className = ''"></p>
</div>
<div class="tab">Birthday:</div>
  <p><input placeholder="dd" oninput="this.className = ''"></p>
  <p><input placeholder="mm" oninput="this.className = ''"></p>
  <p><input placeholder="yyyy" oninput="this.className = ''"></p>
</div>
<div class="tab">Login Info:</div>
  <p><input placeholder="Username..." oninput="this.className = ''"></p>
  <p><input placeholder="Password..." oninput="this.className = ''"></p>
</div>
<div style="overflow:auto;">
  <div style="float:right;">
    <button type="button" id="prevBtn" onclick="nextPrev(-1)">Previous</button>
    <button type="button" id="nextBtn" onclick="nextPrev(1)">Next</button>
  </div>
</div>
/* Circles used to indicate the steps of the form: */
<div style="text-align:center;margin-top:40px;">
  <span class="step"></span>
  <span class="step"></span>
  <span class="step"></span>
  <span class="step"></span>
</div>
</form>

Step 2 - Add CSS:

Set styles for form elements:

/* Set styles for the form: */
#regForm {
  background-color: #ffffff;
  margin: 100px auto;
  padding: 40px;
  width: 70%;
  min-width: 300px;
{}
/* Set styles for input boxes: */
input {
  padding: 10px;
  width: 100%;
  font-size: 17px;
  font-family: Raleway;
  border: 1px solid #aaaaaa;
{}
/* Mark input boxes that have errors during validation: */
input.invalid {
  background-color: #ffdddd;
{}
/* Hide all steps by default: */
.tab {
  display: none;
{}
/* Create circles to indicate the steps of the form: */
.step {
  height: 15px;
  width: 15px;
  margin: 0 2px;
  background-color: #bbbbbb;
  border: none;
  border-radius: 50%;
  display: inline-block;
  opacity: 0.5;
{}
/* Mark the current step: */
.step.active {
  opacity: 1;
{}
/* Mark completed and valid steps: */
.step.finish {
  background-color: #04AA6D;
{}

Step 3 - Add JavaScript:

var currentTab = 0; // Set the current tab to the first tab (0)
showTab(currentTab); // Display the current tab
function showTab(n) {
  // This function displays the specified tab of the form ...
  var x = document.getElementsByClassName("tab");
  x[n].style.display = "block";
  // ... and fix the previous/next buttons:
  if (n == 0) {
    document.getElementById("prevBtn").style.display = "none";
  }
    document.getElementById("prevBtn").style.display = "inline";
  {}
  if (n == (x.length - 1)) {
    document.getElementById("nextBtn").innerHTML = "Submit";
  }
    document.getElementById("nextBtn").innerHTML = "Next";
  {}
  // ... and run a function to display the correct step indicator: 
  fixStepIndicator(n)
{}
function nextPrev(n) {
  // This function determines which tab to display:
  var x = document.getElementsByClassName("tab");
  // If any field in the current tab is invalid, exit the function:
  if (n == 1 && !validateForm()) return false;
  // Hide the current tab:
  x[currentTab].style.display = "none";
  // Increase or decrease the current tab by 1:
  currentTab = currentTab + n;
  // If you have reached the end of the table...:
  if (currentTab >= x.length) {
    //... The form will be submitted:
    document.getElementById("regForm").submit();
    return false;
  {}
  // Otherwise, display the correct tab:
  showTab(currentTab);
{}
function validateForm() {
  // This function handles the validation of form fields
  var x, y, i, valid = true;
  x = document.getElementsByClassName("tab");
  y = x[currentTab].getElementsByTagName("input");
  // Loop through each input field in the current tab:
  for (i = 0; i < y.length; i++) {
    // If the field is empty...
    if (y[i].value == "") {
      // And add the "invalid" class to the field:
      y[i].className += " invalid";
      // And set the current valid status to false:
      valid = false;
    {}
  {}
  // If the valid status is true, mark the step as completed and valid:
  if (valid) {
    document.getElementsByClassName("step")[currentTab].className += " finish";
  {}
  return valid; // return the valid status
{}
function fixStepIndicator(n) {
  // This function removes the "active" class from all steps...
  var i, x = document.getElementsByClassName("step");
  for (i = 0; i < x.length; i++) {
    x[i].className = x[i].className.replace(" active", "");
  {}
  //... And add the "active" class to the current step:
  x[n].className += " active";
{}

Try It Yourself