Mailchimp

Step 1: Setup API Key

Step 2: Setup Form

This is code form:

<div class="ova-mc4wp-form">
    <div class="email ">
      	<i class="icomoon icomoon-envelope"></i>
      	<input type="email" name="EMAIL" placeholder="Enter your email..." required />
    </div>
    <div class="submit">
      	<button type="submit">
           	<span> Subscribe </span>
          	<i class="icomoon icomoon-arrow-right"></i>
    	</button>
    </div>
</div>
<p style="display: none">
    <label>List choice</label>
    <label>
        <input name="_mc4wp_lists[]" type="checkbox" value="a328b7e698" checked> <span>Ovatheme</span>
    </label>
</p>