Gracias por responder
Código HTML:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width,minimum-scale=1,initial-scale=1">
<title>Correo</title>
<style>
body{font-family:Helvetica,Arial,sans-serif; margin:0;}.clr{clear:both}.col12{width:100%}.col11{width:91.66666667%}.col10{width:83.33333333%}.col9{width:75%}.col8{width:66.66666667%}.col7{width:58.33333333%}.col6{width:50%}.col5{width:41.66666667%}.col4{width:33.33333333%}.col3{width:25%}.col2{width:16.66666667%}.col1{width:8.33333333%}.col12,.col11,.col10,.col9,.col8,.col7,.col6,.col5,.col4,.col3,.col2,.col1{position:relative;float:left;height:auto}
h1{font-size:28px; line-height: 1.3;}
.contenedor{position:relative;width:100%;max-width:640px;margin:auto;padding:0 15px;box-sizing:border-box;}
.header{width:100%; padding:50px 0;} .header .logo{}
.header h1{color:#fff; text-align:center;}
</style>
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<body>
<div class="header" style="background-color:#000; background-image:url(https://mindculturalcenter.com/datos/banner-impuesto-renta.jpg); background-position:top; background-repeat:no-repeat;">
<div class="contenedor">
<div class="logo" style="width:400px; margin:0 auto;"><img src="https://mindculturalcenter.com/datos/logo-md-web-footer.png" /></div>
<h1>Seminario<br />Impuesto a la Renta 2018: aspectos controvertidos en la determinación del resultado anual</h1>
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<div class="contenedor">
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<p>Otro Contenido textual</p>
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<div class="footer">
<div class="contenedor">
<p>Aqui pie</p>
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</body>
</html> EL enlace tbn dejo
aquí