I recently created an HTML email using a template and it looks great on most platforms, but not in Thunderbird. The header image is not aligned properly above the content as shown in the screenshot. Does anyone know how to troubleshoot this issue or have any suggestions?
https://i.stack.imgur.com/xSHUU.png
<!DOCTYPE html>
<html lang="en" xmlns="http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office">
<head>
<meta charset="utf-8"> <!-- utf-8 works for most cases -->
<meta name="viewport" content="width=device-width"> <!-- Forcing initial-scale shouldn't be necessary -->
<meta http-equiv="X-UA-Compatible" content="IE=edge"> <!-- Use the latest (edge) version of IE rendering engine -->
<title></title> <!-- The title tag shows in email notifications, like Android 4.4. -->
<!-- Web Font / @font-face : BEGIN -->
<!-- NOTE: If web fonts are not required, lines 10 - 27 can be safely removed. -->
<!-- Desktop Outlook chokes on web font references and defaults to Times New Roman, so we force a safe fallback font. -->
<!--[if mso]>
<style>
* {
font-family: sans-serif !important;
}
</style>
<![endif]-->
<!-- All other clients get the webfont reference; some will render the font and others will silently fail to the fallbacks. More on that here: http://stylecampaign.com/blog/2015/02/webfont-support-in-email/ -->
<!--[if !mso]><!-->
<!-- insert web font reference, eg: <link href='https://fonts.googleapis.com/css?family=Roboto:400,700' rel='stylesheet' type='text/css'> -->
<!--<![endif]-->
<!-- Web Font / @font-face : END -->
<!-- CSS Reset -->
<style>
/* Code for resetting styles */
</style>
<!-- Progressive Enhancements -->
<style>
/* Media query for responsive design */
</style>
<!-- What it does: Makes background images in 72ppi Outlook render at correct size. -->
<!--[if gte mso 9]>
<xml>
<o:OfficeDocumentSettings>
<o:AllowPNG/>
<o:PixelsPerInch>96</o:PixelsPerInch>
</o:OfficeDocumentSettings>
</xml>
<![endif]-->
</head>
<body width="100%" bgcolor="#121f2a" style="margin: 0; mso-line-height-rule: exactly;">
<center style="width: 100%; background: #121f2a; text-align: left;">
<!-- Email Header : END -->
<!-- Email Body : BEGIN -->
<table role="presentation" cellspacing="0" cellpadding="0" border="0" align="center" width="600" style="margin: auto;" class="email-container">
<!-- Content inside the email body goes here -->
</table>
<!-- Email Body : END -->
<!-- Email Footer : BEGIN -->
<table role="presentation" cellspacing="0" cellpadding="0" border="0" align="center" width="600" style="margin: auto;" class="email-container">
<!-- Footer section of the email -->
</table>
<!-- Email Footer : END -->
<!-- Full Bleed Background Section : BEGIN -->
<table role="presentation" bgcolor="#709f2b" cellspacing="0" cellpadding="0" border="0" align="center" width="100%">
<!-- Content with full bleed background color or image -->
</table>
<!-- Full Bleed Background Section : END -->
</center>
<br/>
<img src="cid:MYIMGID" alt="CoinLend Logo" style="margin-top:10px;margin-bottom:10px;width:200px;display:none;"></img>
<br/>
</body>
</html>