<div>
    <!--[if mso]>
    <v:roundrect xmlns:v="urn:schemas-microsoft-com:vml" xmlns:w="urn:schemas-microsoft-com:office:word" href="buttonURLhere" style="height:44px;v-text-anchor:middle;width:150px;" arcsize="50%" strokecolor="#c94b2c" fillcolor="#c94b2c">
        <w:anchorlock/>
        <center style="color:#ffffff;font-family:Open Sans, Arial;font-size:16px;">buttonTextHere</center>
    </v:roundrect>
    <![endif]-->
    <a href="buttonURLhere" style="background-color:#c94b2c;border:1px solid #c94b2c;border-radius:50px;color:white;display:inline-block;font-family:Open Sans, Arial;font-size:16px;line-height:44px;text-align:center;text-decoration:none;width:150px;-webkit-text-size-adjust:none;mso-hide:all;">buttonTextHere</a>
</div>