CSS 在线 link 无法正常工作

Online link of CSS is not working

我正在创建电子邮件模板,但不幸的是在线 link css 无法正常工作,因此我无法将原始字体添加到文本中。请帮助我。

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        <td bgcolor="#FFFFFF"><img style="max-width:600px" src="https://ci5.googleusercontent.com/proxy/-zbqc6a6aIbzcjC5vujbx_4Lj4ACf-igKmWSxoCTqQlisyiSwszRMuKf1hYL4WQXRPFiOGGRpLQQEJ-fyDSvAuIGrYb1mh64UXF_4qQZWQoDNBgZ83dEp0ZtdKjqnrdsetP2Egco-JGxw0bhwVOG3HzUK63Bh5x1SmAs1Dc=s0-d-e1-ft#https://gallery.mailchimp.com/5c25c42347b2d807c72dbc5d2/images/3c8a1a6d-205c-441c-a28e-a95803aee4d1.jpg" alt="Ready For Take Off?" class="CToWUd a6T" tabindex="0">
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                <td valign="top" height="40"><em> <img width="219" height="32" style="float:left" src="https://ci3.googleusercontent.com/proxy/e6nLB5X9PQuNeBW1uJFqicqZrQ3ss0Fc9tqVIYOTKHdOi9lPxhxRilCE5FS9h5O95wuJy24ddDCOWkJuHNW7GpnWctCuQO6VtT2EBIe1MbVsUNbsnYizhWdQWQcO7JZuG6icSd48VFMpvXUql6ri_e8ZbOT_-25oZfAMqfs=s0-d-e1-ft#https://gallery.mailchimp.com/5c25c42347b2d807c72dbc5d2/images/822ba1e7-e5da-44d4-be18-bd4dac733568.gif" alt="Red Bull College" class="CToWUd"></em><span style="color:#94969c;">
                  <p style="margin-left:10px; margin-top:0px; display:inline-block;"> 13TH - 17TH OF APRIL 2015 <br>
                    RED BULL HQ COLLEGE</p>
                  <span><span><span data-term="goog_1244661817" class="aBn" tabindex="0"></span></span></span></span></td>
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                <td valign="top"><p style="color:rgb(147,149,152);text-align:justify; font-family: 'futuramedium', Arial, Helvetica, sans-serif;font-size: 9px;line-height:12px;"><font>Hello!&nbsp;<br>
                    <br>
                    We are pleased to welcome you as a participant of Red Bull College, which will be held at our Headquarters in Austria, April 2015.&nbsp;<br>
                    <br>
                    The objective of the College is to introduce you to the world of Red Bull; we will cover a range of topics from Brand Marketing, Sports, Events and Culture Marketing, Red Bull Media House, Product &amp; Production, Consumer Products and On &amp; Off Premise.<br>
                    <br>
                    The College will also allow you to experience some of the famous Red Bull landmarks such as the Red Bull Hangar-7 and the Flying Bulls!&nbsp;<br>
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                <td valign="top"><p style="color:rgb(147,149,152);text-align:justify; font-family: 'futuramedium', Arial, Helvetica, sans-serif;font-size: 9px;line-height:12px;"><font><br>
                    <br>
                    For organization purposes we would ask you to please arrange your own flights to arrive in Salzburg on&nbsp;<span><span><span data-term="goog_1244661818" class="aBn" tabindex="0"><span class="aQJ">Monday 13th April 2015</span></span></span></span>&nbsp;(no later than 1600) and your departure on&nbsp;<span><span><span data-term="goog_1244661819" class="aBn" tabindex="0"><span class="aQJ">Friday 17th April 2015</span></span></span></span>&nbsp;in the morning.&nbsp;<br>
                    <br>
                    Please work with your local travel agent for any visa requirements for entry into the EU.&nbsp;<br>
                    <br>
                    If you require an invitation letter, we need a scanned copy of your passport. The visa process can take up to 1 month so please contact us immediately so we can support with this.</font></p></td>
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                <td valign="top"><p style="font-family: 'futuramedium', Arial, Helvetica, sans-serif;text-align:justify;font-size: 9px;line-height:12px;"><font ><br>
                    <br>
                    <font color="#939598">The HQ team will handle accommodation and most&nbsp;travel arrangement, therefore we will require your travel details as soon as&nbsp;possible - Please RSVP by 6th March 2014.</font><br>
                    <br>
                    <font color="#939598">With such a large group of participants, we would greatly appreciate prompt response which you can do on the official Red Bull College Collaboration group by following the link below.&nbsp;</font><span style="color:rgb(147,149,152)"><br>
                    <br>
                    We hope to see you there!<br>
                    <br>
                    <strong>International Brand Team</strong></span></font></p></td>
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                <td valign="top" align="right"><em><a target="_blank" style="border:0px" href="https://collaboration.redbull.com/groups/training-group-red-bull-college"> <img width="228" height="52" style="border:0px" src="https://ci6.googleusercontent.com/proxy/YZCB9mHmbnOGGIkbxV9YVrtTyOuWCJTKOvkjFWhiw0L4XKWSfvLKWOqZ8ga2jRtbqjWSzBjlCcAdPN4jzNqYb_oBb9keCILUh3LS9h3Tz77RjspJ90pXajR1APSXzpQJg9o=s0-d-e1-ft#http://gallery.mailchimp.com/5c25c42347b2d807c72dbc5d2/images/click_here.gif" alt="Click Here to Take Off" class="CToWUd"></a></em></td>
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自定义字体不适用于所有客户端的电子邮件!恐怕你必须坚持使用基本字体系列。