mailchimp-single-line-email.html

<div id="mc_embed_signup">

<!-- replace the line below -->
<form action="[your-form-action-url-here]" method="post" id="mc-embedded-subscribe-form" name="mc-embedded-subscribe-form" class="validate" target="_blank" novalidate>
<!-- replace the line above -->

<div class="mc-field-group" style="display:inline;">
    <input type="email" value="" name="EMAIL" class="required email" id="mce-EMAIL" placeholder ="Your Email" style="display:inline;">
</div>

<!-- replace the line below -->
<div style="position: absolute; left: -5000px;"><input type="text" name="[a-long-number-here]" tabindex="-1" value=""></div>
<!-- replace the line above -->

<input type="submit" value="Subscribe" name="subscribe" id="mc-embedded-subscribe" class="button" style="display:inline;">
<div id="mce-responses" class="clear">
    <div class="response" id="mce-error-response" style="display:none"></div>
    <div class="response" id="mce-success-response" style="display:none"></div>
</div>  
</form>
</div>