Bootstrap snippet and html example. 2 step verification form inside a card

<div class="row justify-content-center mt-7">
    <div class="col-lg-5 text-center">
      <a href="index.html">
        <img src="assets/img/svg/logo.svg" alt="">
      </a>
      <div class="card mt-5">
        <div class="card-body py-5 px-lg-5">
          <div class="svg-icon svg-icon-xl text-purple">
            <svg xmlns="http://www.w3.org/2000/svg" width="512" height="512" viewBox="0 0 512 512"><title>ionicons-v5-g</title><path d="M336,208V113a80,80,0,0,0-160,0v95" style="fill:none;stroke:#000;stroke-linecap:round;stroke-linejoin:round;stroke-width:32px"></path><rect x="96" y="208" width="320" height="272" rx="48" ry="48" style="fill:none;stroke:#000;stroke-linecap:round;stroke-linejoin:round;stroke-width:32px"></rect></svg>
          </div>
          <h3 class="fw-normal text-dark mt-4">
            2-step verification
          </h3>
          <p class="mt-4 mb-1">
            We sent a verification code to your email.
          </p>
          <p>
            Please enter the code in the field below.
          </p>
            
          <div class="row mt-4 pt-2">
            <div class="col">
              <input type="text" class="form-control form-control-lg text-center py-4" maxlength="1" autofocus="">
            </div>
            <div class="col">
              <input type="text" class="form-control form-control-lg text-center py-4" maxlength="1">
            </div>
            <div class="col">
              <input type="text" class="form-control form-control-lg text-center py-4" maxlength="1">
            </div>
            <div class="col">
              <input type="text" class="form-control form-control-lg text-center py-4" maxlength="1">
            </div>
          </div>

          <a href="#!" class="btn btn-purple btn-lg w-100 hover-lift-light mt-4">
            Verify my account
          </a>
        </div>
      </div>

      <p class="text-center text-muted mt-4">
        Didn't receive it?
        <a href="#!" class="text-decoration-none ms-2">
          Resend code
        </a>
      </p>
    </div>
  </div>

body{margin-top:20px;
background:#f6f9fc;
}
.icon-circle[class*=text-] [fill]:not([fill=none]), .icon-circle[class*=text-] svg:not([fill=none]), .svg-icon[class*=text-] [fill]:not([fill=none]), .svg-icon[class*=text-] svg:not([fill=none]) {
    fill: currentColor!important;
}
.svg-icon-xl>svg {
    width: 3.25rem;
    height: 3.25rem;
}

.hover-lift-light {
    transition: box-shadow .25s ease,transform .25s ease,color .25s ease,background-color .15s ease-in;
}
.mt-4 {
    margin-top: 1.5rem!important;
}
.w-100 {
    width: 100%!important;
}
.btn-group-lg>.btn, .btn-lg {
    padding: 0.8rem 1.85rem;
    font-size: 1.1rem;
    border-radius: 0.3rem;
}
.btn-purple {
    color: #fff;
    background-color: #6672e8;
    border-color: #6672e8;
}

.text-center {
    text-align: center!important;
}
.py-4 {
    padding-top: 1.5rem!important;
    padding-bottom: 1.5rem!important;
}
.form-control-lg {
    min-height: calc(1.5em + 1rem + 2px);
    padding: 0.5rem 1rem;
    font-size: 1.25rem;
    border-radius: 0.3rem;
}
.form-control {
    display: block;
    width: 100%;
    padding: 0.375rem 0.75rem;
    font-size: 1rem;
    font-weight: 400;
    line-height: 1.5;
    color: #1e2e50;
    background-color: #f6f9fc;
    background-clip: padding-box;
    border: 1px solid #dee2e6;
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    border-radius: 0.25rem;
    transition: border-color .15s ease-in-out,box-shadow .15s ease-in-out;
}