blocks|key|6268437|text|这是因为大多数主要的电子邮件提供商都有一个web浏览器邮箱，所以他们经常禁用99%25的CSS，这样它就不会改变邮箱的样式和整体结构。这个想法是，如果提供了太多的CSS，那么它可能会覆盖web浏览器电子邮件布局的样式。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|6268438|好的经验法则是“像1996年那样编写代码”。|6268439|这里有一个很棒的资源：http://kb.mailchimp.com/article/how-to-code-html-emails/|offset|length|6268440|此外，要解决您的问题，请使用img标记，该标记具有指向在线托管图像的绝对路径。|6268441|entityMap|0|LINK|mutability|MUTABLE|url|http://kb.mailchimp.com/article/how-to-code-html-emails/^0|0|0|B|1K|0|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|S|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|T|8|@]|9|@$F|U|G|V|1|W]]|A|$]]|$1|H|3|I|5|6|7|X|8|@]|9|@]|A|$]]|$1|J|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|Q]]]]

It's because most major email providers have a web browser mailbox, so they often disable 99% of CSS so it does not change the styles and the overall structure of the mailbox. The idea is that if too much CSS is provided, then it could override the styles of a web browser email layout.

Good rule of thumb is to "code like it's 1996."

Here's a great resource: <a href="http://kb.mailchimp.com/article/how-to-code-html-emails/" rel="nofollow">http://kb.mailchimp.com/article/how-to-code-html-emails/</a>

Also, to solve your problem, use an img tag with an absolute path to an online hosted image.

blocks|key|6322260|text|电子邮件不显示背景图像，这一直是一个令人担忧的问题。在可能的地方，你可以使用图像。在电子邮件程序的底部，如果邮件客户端有阻止的图像，您还可以给出一个链接，以HTML页面的形式访问您的电子邮件程序。也可以查看这个链接：http://backgrounds.cm/|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|6322261|在上面的链接中，有一些解决方案可以显示整个电子邮件正文的背景图像或仅显示特定表单元格的背景图像。这在一定程度上是可行的。|6322262|最好的事情是有背景颜色和一个很好的电子邮件发件人字体。|6322263|entityMap|0|LINK|mutability|MUTABLE|url|http://backgrounds.cm/^0|30|M|0|0|0|0^^$0|@$1|2|3|4|5|6|7|P|8|@]|9|@$A|Q|B|R|1|S]]|C|$]]|$1|D|3|E|5|6|7|T|8|@]|9|@]|C|$]]|$1|F|3|G|5|6|7|U|8|@]|9|@]|C|$]]|$1|H|3|-4|5|6|7|V|8|@]|9|@]|C|$]]]|I|$J|$5|K|L|M|C|$N|O]]]]

Emailers do not display background images and this has always been a concern. At possible places you could use images. At the bottom of the emailer you can also give a link to access your emailer as a HTML page if the mail client has blocked images. Check this link also: <a href="http://backgrounds.cm/" rel="nofollow">http://backgrounds.cm/</a>

In the above link there are solutions to display background images for the entire emailer body or for a particular table cell only. This will work to an extent.

Best thing would be to have background colors and a good typography for emailers.

blocks|key|6322279|text|是的，大多数CSS样式将在邮件电子邮件客户端中得到支持。所有电子邮件客户端都有自己的限制和支持CSS属性的方式。这里有几条金科玉律|type|unstyled|depth|inlineStyleRanges|entityRanges|data|6322280|1)始终编写内联CSS样式|6322281|2)始终使用构造电子邮件程序|6322282|3)尽可能多地使用属性。|6322283|4)使用HTML元素“属性”，如"title"，"alt“，这样如果图片被阻止静止，用户可以看到关于图片的描述，并允许图片下载。|6322284|这是CSS支持信息https://www.campaignmonitor.com/css/|offset|length|6322285|entityMap|0|LINK|mutability|MUTABLE|url|https://www.campaignmonitor.com/css/^0|0|0|0|0|0|9|10|0|0^^$0|@$1|2|3|4|5|6|7|V|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|W|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|X|8|@]|9|@]|A|$]]|$1|F|3|G|5|6|7|Y|8|@]|9|@]|A|$]]|$1|H|3|I|5|6|7|Z|8|@]|9|@]|A|$]]|$1|J|3|K|5|6|7|10|8|@]|9|@$L|11|M|12|1|13]]|A|$]]|$1|N|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|O|$P|$5|Q|R|S|A|$T|U]]]]

Yes, most of the CSS style would be supported in mailer email client. All email clients have their own restriction and the way they support CSS property. Here is few golden rule

1) Always write inline CSS styles

2) Always use to construct the emailer 

3) Try using attribute as much as possible.

4) Use HTML elements "attributes" like "title", "alt" so if images are block still user can see the description about image and allow image to download.

Here is CSS support info
<a href="https://www.campaignmonitor.com/css/" rel="nofollow">https://www.campaignmonitor.com/css/</a>

I am a newbie to HTML coding and am working on HTML emails. 
Recently I came to know that many of the email clients strip out the images put in the background in HTML email for security reasons.
But what are these security reasons?
What type of security threat can a background image possibly hold.
Thanks in advance to anyone who helps out.

HTML email- Why doesn't background images get loaded?

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我是HTML编码的新手，正在处理HTML电子邮件。最近，我开始了解到，出于安全原因，许多电子邮件客户端会删除HTML电子邮件背景中的图片。但是这些安全原因是什么呢？背景图像可能包含哪种类型的安全威胁。提前感谢所有帮助过我们的人。

问HTML电子邮件-为什么不加载背景图像？
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