Django HTML电子邮件模板未在电子邮件中加载CSS [英] Django HTML E-mail template doesn't load css in the e-mail
本文介绍了Django HTML电子邮件模板未在电子邮件中加载CSS的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我从Django这样发送HTML电子邮件：
I am sending HTML E-mail from Django like this:
template_html = "email/deposit_email.html"
email_context = Context({ 'contact': contact, 'amount': amount})
subject, from_email, to = 'Deposit Successfully created.', settings.EMAIL_HOST_USER, contact_email
text_content = "Thank you for depositing the amount of " + str(amount) + "."
html = loader.get_template(template_html)
html_content = html.render(email_context)
msg = EmailMultiAlternatives(subject, text_content, from_email, [to])
msg.attach_alternative(html_content, "text/html")
msg.send()
我收到一封没有任何CSS的电子邮件。我使用以下命令在Django中加载了模板本身：
I am getting an e-mail without any css. I loaded the template itself in Django using:
return render(request, 'templatename_html')
模板在Django中正确加载了所有CSS，但在gmail中发送电子邮件时却未加载。
The template is loading properly with all css in the django but not while sending e-mail in the gmail. What's wrong?
推荐答案
正如其他开发人员提到的那样，电子邮件客户端不会加载外部CSS，因此您必须内联它。手动内联css是一个错误的决定。有用于内联css的库。其中之一是 django-inlinecss 。您可以使代码保持原样。您需要做的就是安装django-inlinecss并更改 deposit_email.html。我不知道它的外观，因为您尚未发布它，所以我给您提供简单的标题示例，例如之前成功使用的电子邮件模板。
As other devs mentioned email clients do not load external css, so you have to inline it. Inlining css manually is poor decision. There are libraries to inline css. One of them is django-inlinecss. You can keep you code exactly as it is. All you need to do is to install django-inlinecss and to change "deposit_email.html". I do not know how it looks, because you have not publish it, so I give you example of simple header like email template I used before with success.
{% load inlinecss %}
{% inlinecss "css/email.css" %}
<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<table class="body">
<tr>
<td class="center" align="center" valign="top">
<center>
<table class="row header">
<tr>
<td class="center" align="center">
<center>
<table class="container">
<tr>
<td class="wrapper last">
<table class="twelve columns">
<tr>
<td>
<img src="your_header_link">
</td>
<td class="expander"></td>
</tr>
</table>
</td>
</tr>
</table>
</center>
</td>
</tr>
</table>
<table class="container">
<tr>
<td>
<table class="row">
<tr>
<td class="wrapper last">
<table class="twelve columns">
<tr>
<td>
{% block content %} Email {% endblock %}
<td class="expander"></td>
</tr>
</table>
</td>
</tr>
</table>
</td>
</tr>
</table>
</center>
</td>
</tr>
</table>
</body>
</html>
{% endinlinecss %}
这里没什么大不了的。第一行加载inlinecss标记。
Not much going on here. First line loads inlinecss tag.
{% load inlinecss %}
第二行开始html，将内联css。它还会加载email.css，该文件可以是django项目中的任何静态文件。
Second line starts html, which will be css inlined. It also load email.css which can be any static file in your django project.
{% inlinecss "css/email.css" %}
在基于表的模板之后，该模板的标题和正文带有Django块 content。
最后一行是
After that table based template which has header and body with django block 'content'. Final line is
{% endinlinecss %}
内联结束。如您所见，我内联了整个模板。我建议使用一个或多个父电子邮件模板，其中包含模板结构，而不是对特定电子邮件使用模板继承。这样，您需要指定模板并内联一次CSS。
Which ends inlinecss. As you can see I inline my entire template. I recommend to have one or more parent email templates, which contain template structure and than to use template inheritance for particular emails. In that way you need to specify template and inline your css once.
最后但并非最不重要。为了使表格模板正常播放，您需要使用email.css样式。 CSS有点大，但本质上很简单。
Last but not least. In order for table template to play nicely you need email.css styles. CSS is a bit big, but simple in nature. Add your own styles on top of that.
#outlook a {
padding: 0;
}
body {
width: 100% !important;
min-width: 100%;
-webkit-text-size-adjust: 100%;
-ms-text-size-adjust: 100%;
margin: 0;
padding: 0;
}
.ExternalClass {
width: 100%;
}
.ExternalClass,
.ExternalClass p,
.ExternalClass span,
.ExternalClass font,
.ExternalClass td,
.ExternalClass div {
line-height: 100%;
}
#backgroundTable {
margin: 0;
padding: 0;
width: 100% !important;
line-height: 100% !important;
}
img {
outline: none;
text-decoration: none;
-ms-interpolation-mode: bicubic;
width: auto;
max-width: 100%;
float: left;
clear: both;
display: block;
}
center {
width: 100%;
min-width: 580px;
}
a img {
border: none;
}
p {
margin: 0 0 0 10px;
}
table {
border-spacing: 0;
border-collapse: collapse;
}
td {
word-break: normal;
-webkit-hyphens: auto;
-moz-hyphens: auto;
hyphens: auto;
border-collapse: collapse !important;
}
table, tr, td {
padding: 0;
vertical-align: top;
text-align: left;
}
hr {
color: #d9d9d9;
background-color: #d9d9d9;
height: 1px;
border: none;
}
/* Responsive Grid */
table.body {
height: 100%;
width: 100%;
}
table.container {
width: 580px;
margin: 0 auto;
text-align: inherit;
}
table.row {
padding: 0px;
width: 100%;
position: relative;
}
table.container table.row {
display: block;
}
td.wrapper {
padding: 10px 20px 0px 0px;
position: relative;
}
table.columns,
table.column {
margin: 0 auto;
}
table.columns td,
table.column td {
padding: 0px 0px 10px;
}
table.columns td.sub-columns,
table.column td.sub-columns,
table.columns td.sub-column,
table.column td.sub-column {
padding-right: 10px;
}
td.sub-column, td.sub-columns {
min-width: 0px;
}
table.row td.last,
table.container td.last {
padding-right: 0px;
}
table.one {
width: 30px;
}
table.two {
width: 80px;
}
table.three {
width: 130px;
}
table.four {
width: 180px;
}
table.five {
width: 230px;
}
table.six {
width: 280px;
}
table.seven {
width: 330px;
}
table.eight {
width: 380px;
}
table.nine {
width: 430px;
}
table.ten {
width: 480px;
}
table.eleven {
width: 530px;
}
table.twelve {
width: 580px;
}
table.one center {
min-width: 30px;
}
table.two center {
min-width: 80px;
}
table.three center {
min-width: 130px;
}
table.four center {
min-width: 180px;
}
table.five center {
min-width: 230px;
}
table.six center {
min-width: 280px;
}
table.seven center {
min-width: 330px;
}
table.eight center {
min-width: 380px;
}
table.nine center {
min-width: 430px;
}
table.ten center {
min-width: 480px;
}
table.eleven center {
min-width: 530px;
}
table.twelve center {
min-width: 580px;
}
table.one .panel center {
min-width: 10px;
}
table.two .panel center {
min-width: 60px;
}
table.three .panel center {
min-width: 110px;
}
table.four .panel center {
min-width: 160px;
}
table.five .panel center {
min-width: 210px;
}
table.six .panel center {
min-width: 260px;
}
table.seven .panel center {
min-width: 310px;
}
table.eight .panel center {
min-width: 360px;
}
table.nine .panel center {
min-width: 410px;
}
table.ten .panel center {
min-width: 460px;
}
table.eleven .panel center {
min-width: 510px;
}
table.twelve .panel center {
min-width: 560px;
}
.body .columns td.one,
.body .column td.one {
width: 8.333333%;
}
.body .columns td.two,
.body .column td.two {
width: 16.666666%;
}
.body .columns td.three,
.body .column td.three {
width: 25%;
}
.body .columns td.four,
.body .column td.four {
width: 33.333333%;
}
.body .columns td.five,
.body .column td.five {
width: 41.666666%;
}
.body .columns td.six,
.body .column td.six {
width: 50%;
}
.body .columns td.seven,
.body .column td.seven {
width: 58.333333%;
}
.body .columns td.eight,
.body .column td.eight {
width: 66.666666%;
}
.body .columns td.nine,
.body .column td.nine {
width: 75%;
}
.body .columns td.ten,
.body .column td.ten {
width: 83.333333%;
}
.body .columns td.eleven,
.body .column td.eleven {
width: 91.666666%;
}
.body .columns td.twelve,
.body .column td.twelve {
width: 100%;
}
td.offset-by-one {
padding-left: 50px;
}
td.offset-by-two {
padding-left: 100px;
}
td.offset-by-three {
padding-left: 150px;
}
td.offset-by-four {
padding-left: 200px;
}
td.offset-by-five {
padding-left: 250px;
}
td.offset-by-six {
padding-left: 300px;
}
td.offset-by-seven {
padding-left: 350px;
}
td.offset-by-eight {
padding-left: 400px;
}
td.offset-by-nine {
padding-left: 450px;
}
td.offset-by-ten {
padding-left: 500px;
}
td.offset-by-eleven {
padding-left: 550px;
}
td.expander {
visibility: hidden;
width: 0px;
padding: 0 !important;
}
table.columns .text-pad,
table.column .text-pad {
padding-left: 10px;
padding-right: 10px;
}
table.columns .left-text-pad,
table.columns .text-pad-left,
table.column .left-text-pad,
table.column .text-pad-left {
padding-left: 10px;
}
table.columns .right-text-pad,
table.columns .text-pad-right,
table.column .right-text-pad,
table.column .text-pad-right {
padding-right: 10px;
}
/* Block Grid */
.block-grid {
width: 100%;
max-width: 580px;
}
.block-grid td {
display: inline-block;
padding: 10px;
}
.two-up td {
width: 270px;
}
.three-up td {
width: 173px;
}
.four-up td {
width: 125px;
}
.five-up td {
width: 96px;
}
.six-up td {
width: 76px;
}
.seven-up td {
width: 62px;
}
.eight-up td {
width: 52px;
}
/* Alignment & Visibility Classes */
table.center, td.center {
text-align: center;
}
h1.center,
h2.center,
h3.center,
h4.center,
h5.center,
h6.center {
text-align: center;
}
span.center {
display: block;
width: 100%;
text-align: center;
}
img.center {
margin: 0 auto;
float: none;
}
.show-for-small,
.hide-for-desktop {
display: none;
}
/* Typography */
body, table.body, h1, h2, h3, h4, h5, h6, p, td {
color: #222222;
font-family: "Helvetica", "Arial", sans-serif;
font-weight: normal;
padding: 0;
margin: 0;
text-align: left;
line-height: 1.3;
}
h1, h2, h3, h4, h5, h6 {
word-break: normal;
}
h1 {
font-size: 40px;
}
h2 {
font-size: 36px;
}
h3 {
font-size: 32px;
}
h4 {
font-size: 28px;
}
h5 {
font-size: 24px;
}
h6 {
font-size: 20px;
}
body, table.body, p, td {
font-size: 14px;
line-height: 19px;
}
p.lead, p.lede, p.leed {
font-size: 18px;
line-height: 21px;
}
p {
margin-bottom: 10px;
}
small {
font-size: 10px;
}
a {
color: #2ba6cb;
text-decoration: none;
}
a:hover {
color: #2795b6 !important;
}
a:active {
color: #2795b6 !important;
}
a:visited {
color: #2ba6cb !important;
}
h1 a,
h2 a,
h3 a,
h4 a,
h5 a,
h6 a {
color: #2ba6cb;
}
h1 a:active,
h2 a:active,
h3 a:active,
h4 a:active,
h5 a:active,
h6 a:active {
color: #2ba6cb !important;
}
h1 a:visited,
h2 a:visited,
h3 a:visited,
h4 a:visited,
h5 a:visited,
h6 a:visited {
color: #2ba6cb !important;
}
/* Panels */
.panel {
background: #f2f2f2;
border: 1px solid #d9d9d9;
padding: 10px !important;
}
.sub-grid table {
width: 100%;
}
.sub-grid td.sub-columns {
padding-bottom: 0;
}
/* Buttons */
table.button,
table.tiny-button,
table.small-button,
table.medium-button,
table.large-button {
width: 100%;
overflow: hidden;
}
table.button td,
table.tiny-button td,
table.small-button td,
table.medium-button td,
table.large-button td {
display: block;
width: auto !important;
text-align: center;
background: #2ba6cb;
border: 1px solid #2284a1;
color: #ffffff;
padding: 8px 0;
}
table.tiny-button td {
padding: 5px 0 4px;
}
table.small-button td {
padding: 8px 0 7px;
}
table.medium-button td {
padding: 12px 0 10px;
}
table.large-button td {
padding: 21px 0 18px;
}
table.button td a,
table.tiny-button td a,
table.small-button td a,
table.medium-button td a,
table.large-button td a {
font-weight: bold;
text-decoration: none;
font-family: Helvetica, Arial, sans-serif;
color: #ffffff;
font-size: 16px;
}
table.tiny-button td a {
font-size: 12px;
font-weight: normal;
}
table.small-button td a {
font-size: 16px;
}
table.medium-button td a {
font-size: 20px;
}
table.large-button td a {
font-size: 24px;
}
table.button:hover td,
table.button:visited td,
table.button:active td {
background: #2795b6 !important;
}
table.button:hover td a,
table.button:visited td a,
table.button:active td a {
color: #fff !important;
}
table.button:hover td,
table.tiny-button:hover td,
table.small-button:hover td,
table.medium-button:hover td,
table.large-button:hover td {
background: #2795b6 !important;
}
table.button:hover td a,
table.button:active td a,
table.button td a:visited,
table.tiny-button:hover td a,
table.tiny-button:active td a,
table.tiny-button td a:visited,
table.small-button:hover td a,
table.small-button:active td a,
table.small-button td a:visited,
table.medium-button:hover td a,
table.medium-button:active td a,
table.medium-button td a:visited,
table.large-button:hover td a,
table.large-button:active td a,
table.large-button td a:visited {
color: #ffffff !important;
}
table.secondary td {
background: #e9e9e9;
border-color: #d0d0d0;
color: #555;
}
table.secondary td a {
color: #555;
}
table.secondary:hover td {
background: #d0d0d0 !important;
color: #555;
}
table.secondary:hover td a,
table.secondary td a:visited,
table.secondary:active td a {
color: #555 !important;
}
table.success td {
background: #5da423;
border-color: #457a1a;
}
table.success:hover td {
background: #457a1a !important;
}
table.alert td {
background: #c60f13;
border-color: #970b0e;
}
table.alert:hover td {
background: #970b0e !important;
}
table.radius td {
-webkit-border-radius: 3px;
-moz-border-radius: 3px;
border-radius: 3px;
}
table.round td {
-webkit-border-radius: 500px;
-moz-border-radius: 500px;
border-radius: 500px;
}
/* Outlook First */
body.outlook p {
display: inline !important;
}
/* Media Queries */
@media only screen and (max-width: 600px) {
table[class="body"] img {
width: auto !important;
height: auto !important;
}
table[class="body"] center {
min-width: 0 !important;
}
table[class="body"] .container {
width: 95% !important;
}
table[class="body"] .row {
width: 100% !important;
display: block !important;
}
table[class="body"] .wrapper {
display: block !important;
padding-right: 0 !important;
}
table[class="body"] .columns,
table[class="body"] .column {
table-layout: fixed !important;
float: none !important;
width: 100% !important;
padding-right: 0px !important;
padding-left: 0px !important;
display: block !important;
}
table[class="body"] .wrapper.first .columns,
table[class="body"] .wrapper.first .column {
display: table !important;
}
table[class="body"] table.columns td,
table[class="body"] table.column td {
width: 100% !important;
}
table[class="body"] .columns td.one,
table[class="body"] .column td.one {
width: 8.333333% !important;
}
table[class="body"] .columns td.two,
table[class="body"] .column td.two {
width: 16.666666% !important;
}
table[class="body"] .columns td.three,
table[class="body"] .column td.three {
width: 25% !important;
}
table[class="body"] .columns td.four,
table[class="body"] .column td.four {
width: 33.333333% !important;
}
table[class="body"] .columns td.five,
table[class="body"] .column td.five {
width: 41.666666% !important;
}
table[class="body"] .columns td.six,
table[class="body"] .column td.six {
width: 50% !important;
}
table[class="body"] .columns td.seven,
table[class="body"] .column td.seven {
width: 58.333333% !important;
}
table[class="body"] .columns td.eight,
table[class="body"] .column td.eight {
width: 66.666666% !important;
}
table[class="body"] .columns td.nine,
table[class="body"] .column td.nine {
width: 75% !important;
}
table[class="body"] .columns td.ten,
table[class="body"] .column td.ten {
width: 83.333333% !important;
}
table[class="body"] .columns td.eleven,
table[class="body"] .column td.eleven {
width: 91.666666% !important;
}
table[class="body"] .columns td.twelve,
table[class="body"] .column td.twelve {
width: 100% !important;
}
table[class="body"] td.offset-by-one,
table[class="body"] td.offset-by-two,
table[class="body"] td.offset-by-three,
table[class="body"] td.offset-by-four,
table[class="body"] td.offset-by-five,
table[class="body"] td.offset-by-six,
table[class="body"] td.offset-by-seven,
table[class="body"] td.offset-by-eight,
table[class="body"] td.offset-by-nine,
table[class="body"] td.offset-by-ten,
table[class="body"] td.offset-by-eleven {
padding-left: 0 !important;
}
table[class="body"] table.columns td.expander {
width: 1px !important;
}
table[class="body"] .right-text-pad,
table[class="body"] .text-pad-right {
padding-left: 10px !important;
}
table[class="body"] .left-text-pad,
table[class="body"] .text-pad-left {
padding-right: 10px !important;
}
table[class="body"] .hide-for-small,
table[class="body"] .show-for-desktop {
display: none !important;
}
table[class="body"] .show-for-small,
table[class="body"] .hide-for-desktop {
display: inherit !important;
}
}
PS结果电子邮件html很难发布，但是基本上，它将所有css属性作为内联属性放在html标签上。
PS Resulting email html is to messy to publish, but basically it will put all your css properties as inline properties on html tags.
这篇关于Django HTML电子邮件模板未在电子邮件中加载CSS的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
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