<div class="otp-page-wrapper">
  <div class="btn-back"></div>
<div class="otp-content-wrapper">
  Please enter the 6-digit code sent to you at <span class="mobile-number">9845498454</span>. &nbsp; <span class="mobile-number-confirmation">Did you enter the correct mobile number?</span>
</div>
<form class="otp" autocomplete="off" novalidate>
    <fieldset>
      <input maxlength="1"/>
      <input maxlength="1"/>
      <input maxlength="1"/>
      <input maxlength="1"/>
      <input maxlength="1"/>
      <input maxlength="1"/>
    </fieldset>
  </form>
<a class="havent-received">I haven't received a code</a>
    <div class="fixed-action-btn toolbar">
    <a class="btn-floating btn-small red">
      <i class="large material-icons">mode_edit</i>
    </a>
  </div>
</div>
* {
  box-sizing: border-box;
}
body,html {
  margin: 0;
  padding: 0;
  font-size: 16px;
}
.btn-back {
  position: absolute;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  top: 10px;
  left: 10px;
  background-color: rgba(120,120,120,1);
}
.otp fieldset, .otp input {
    border: none;
    float: left;
}
form {
  display: flex;
  justify-content: center;
}
.otp fieldset {
  display: block;
}
fieldset input {
  width: 30px;
  height: 30px;
  align-items: center;
  justify-content: center;
  float: left;
  border: none;
  margin-right: 20px;
  text-align: center;
  border-bottom: 1px solid black!important;
}
fieldset input:focus {
  border: 1px solid rgba(150,150,150,1);
}
.otp-page-wrapper {
  display:flex;
  justify-content: space-between;
  flex-flow: column;
  height: 100vh;
  padding: 20px;
}
.otp-content-wrapper {
  font-size: 1.1rem;
  margin-top: 50px;
}
.mobile-number-confirmation {
  color: orange;
  font-size: .9rem;
}
.havent-received {
  color: blue;
  cursor: pointer;
}
.fixed-action-btn {
    position: fixed;
    right: 23px;
    bottom: 23px;
    padding-top: 15px;
    margin-bottom: 0;
    z-index: 997;
}

External CSS

This Pen doesn't use any external CSS resources.

External JavaScript

This Pen doesn't use any external JavaScript resources.