snapshot of https://github.com/zulip/zulip.git @ 48c69911c7dd4e03b20552eb3bd77ad8151c1357 (2026-09-15)

templates/zerver/emails/email.css

@@ -0,0 +1,358 @@
+/* stylelint-disable color-no-hex, media-feature-range-notation */
+
+/* Hex color codes are used instead of our standard of hsl colors,
+   because hex color codes are rendered by all email clients
+   consistently; HSL colors aren't supported by Hotmail. */
+
+.illustration img,
+img.bottom-illustration {
+    border: none;
+    -ms-interpolation-mode: bicubic;
+    max-width: 100%;
+    vertical-align: bottom;
+}
+
+body.default-email-font-settings {
+    font-family: sans-serif;
+    font-size: 14px;
+    line-height: 1.4;
+    margin: 0;
+    padding: 0;
+    -ms-text-size-adjust: 100%;
+    -webkit-text-size-adjust: 100%;
+}
+
+/* These .layout tables are used to create sections within the email;
+   see for example: https://templates.mailchimp.com/development/html/
+*/
+table.layout {
+    border-collapse: separate;
+    mso-table-lspace: 0;
+    mso-table-rspace: 0;
+    width: 100%;
+}
+
+table.layout > tbody > tr > td {
+    font-family: sans-serif;
+    font-size: 14px;
+    vertical-align: top;
+}
+
+/* After email clients strip the actual body tag out of the email, the
+   .body element will be the equivalent of our outer element. */
+.body {
+    width: 100%;
+    background-color: #f5f9f8;
+}
+
+.container {
+    display: block;
+    margin: 0 auto !important;
+    max-width: 500px;
+    padding: 10px;
+}
+
+/* This class is used to ensure that the images' width
+   does not exceed the actual email layout width. */
+img.responsive-width {
+    max-width: 100%;
+}
+
+/* Our newsletters/marketing emails use a wider content width, to
+   support more complex content with text to the side of images. */
+.container.wide-container {
+    max-width: 700px;
+}
+
+/* Mystery: .container contains .content, but the max-widths for this
+   element are 80px wider than those for .container. */
+.content {
+    box-sizing: border-box;
+    display: block;
+    margin: 20px auto 0;
+    max-width: 580px;
+    padding: 10px;
+}
+
+.content.wide-content {
+    max-width: 780px;
+}
+
+/*
+    The main content region for the email; excludes the preheader and footer.
+*/
+.main {
+    background-color: #fff;
+    border-radius: 3px;
+    width: 100%;
+}
+
+/* Right/left padding to keep content away from edges of email client winder. */
+.wrapper {
+    box-sizing: border-box;
+    padding: 0 20px 20px;
+}
+
+/* Footer section, containing unsubscribe links and the like. */
+.footer {
+    clear: both;
+    padding-top: 10px;
+    text-align: center;
+    width: 100%;
+    margin-top: 20px;
+}
+
+/*
+  Apple mail and other popular email clients will convert the physical
+  address into a link, so we set link color on it.
+*/
+.footer-content-block,
+.physical-address {
+    color: #5f5ec7;
+    font-size: 12px;
+    text-align: center;
+}
+
+/*
+  Styles for the content section of Zulip newsletters and other custom emails.
+*/
+.custom-email-content h1 {
+    font-size: 1.6em;
+    margin-top: 25px;
+    margin-bottom: 5px;
+}
+
+.content ul,
+.content ol {
+    /* Override excessive indentation seen in Gmail. */
+    padding-left: 5px;
+}
+
+.body p,
+p.digest_paragraph,
+.content ul,
+.content ol {
+    font-family: sans-serif;
+    font-size: 14px;
+    font-weight: normal;
+    margin: 10px 0;
+}
+
+.messages p.digest_paragraph {
+    line-height: normal;
+    margin: 4px 0 0;
+}
+
+.body p li,
+.content ul li,
+.content ol li {
+    list-style-position: outside;
+    margin-left: 15px;
+}
+
+/* Link color styling carefully tuned to not apply to user content
+   inside missed-message emails. */
+.body a,
+.digest_paragraph a,
+.sponsorship_request_link,
+.support_request_link,
+.email-preferences a,
+.missed_message.no-content-explanation a {
+    color: #5f5ec7;
+    text-decoration: underline;
+}
+
+.body a:hover,
+.digest_paragraph a:hover,
+.sponsorship_request_link:hover,
+.support_request_link:hover,
+.email-preferences a:hover,
+.missed_message.no-content-explanation a:hover {
+    color: #434388 !important;
+}
+
+.body .button {
+    display: block;
+    padding: 10px 0;
+    margin: 20px auto;
+    width: 200px;
+    color: #5f5ec7;
+    border: 2px solid #5f5ec7;
+    background-color: #fff;
+    border-radius: 4px;
+    font-size: 16px;
+    outline: none;
+    font-family: sans-serif;
+    text-decoration: none;
+    text-align: center;
+    text-shadow: none;
+}
+
+.body a.button:hover {
+    background-color: #5f5ec7;
+    color: #fff;
+    text-decoration: none;
+}
+
+/* The preheader is an invisible region that is used to control what
+   email clients display as the textual preview of the email's content
+   in inbox views. */
+.preheader {
+    color: transparent;
+    display: none;
+    height: 0;
+    max-height: 0;
+    max-width: 0;
+    opacity: 0;
+    overflow: hidden;
+    mso-hide: all;
+    visibility: hidden;
+    width: 0;
+}
+
+/* Illustrations appear over the top of the boundary between the
+   blank space at the top of the email and the content box; for
+   that reason they need a high z-index. */
+.illustration {
+    pointer-events: none;
+    cursor: default !important;
+    z-index: 100;
+}
+
+/* Styling for empty topic placeholders. */
+.empty-topic-display {
+    font-style: italic;
+}
+
+/* CSS for digest email content. */
+.messages {
+    width: 600px;
+    font-size: 12px;
+    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
+    overflow-y: auto;
+    margin-bottom: 12px;
+}
+
+.hot_convo_recipient_block {
+    border: 1px solid #000;
+}
+
+.hot_convo_recipient_header {
+    background-color: #9ec9ff;
+    border-bottom: 1px solid #000;
+    font-weight: bold;
+    padding: 2px;
+}
+
+.hot_convo_message_content {
+    margin-left: 1px;
+    margin-right: 2px;
+}
+
+.hot_convo_message_content_block {
+    padding-left: 6px;
+    font-weight: normal;
+}
+
+/* Text and link colors for missed-message emails. */
+.email-preferences {
+    color: #666;
+}
+
+.email-preferences a {
+    color: #15c;
+}
+
+.content_disabled_help_link {
+    color: #15c;
+}
+
+/* Quoted block for text written by an organization administrator to
+   explain to the end user why their account got deactivated. */
+.deactivated-user-text {
+    padding: 0 0 0 15px;
+    margin: 0 0 20px;
+    border-left: 5px solid #eee;
+    white-space: pre-line;
+    font-family: sans-serif;
+    font-size: 14px;
+}
+
+@media only screen and (max-width: 620px) {
+    table[class="body"] h1 {
+        font-size: 28px !important;
+        margin-bottom: 10px !important;
+    }
+
+    table[class="body"] p,
+    table[class="body"] ul,
+    table[class="body"] ol,
+    table[class="body"] td,
+    table[class="body"] span,
+    table[class="body"] a {
+        font-size: 16px !important;
+    }
+
+    table[class="body"] .wrapper {
+        padding: 0 10px 10px;
+    }
+
+    table[class="body"] .content {
+        padding: 0 !important;
+    }
+
+    table[class="body"] .container {
+        padding: 0 !important;
+        width: 100% !important;
+    }
+
+    table[class="body"] .main {
+        border-left-width: 0 !important;
+        border-radius: 0 !important;
+        border-right-width: 0 !important;
+    }
+}
+
+@media all {
+    /* See https://templates.mailchimp.com/development/css/client-specific-styles/;
+       ExternalClass is something Microsoft Outlook adds to emails. */
+    .ExternalClass {
+        width: 100%;
+    }
+
+    .ExternalClass,
+    .ExternalClass p,
+    .ExternalClass span,
+    .ExternalClass font,
+    .ExternalClass td,
+    .ExternalClass div {
+        line-height: 100%;
+    }
+
+    /* iOS converts physical addresses in emails to links automatically,
+       so this CSS has an effect on iOS even though we don't actually
+       have a link inside the .physical-address element. */
+    .physical-address a {
+        color: inherit !important;
+        font-family: inherit !important;
+        font-size: inherit !important;
+        font-weight: inherit !important;
+        line-height: inherit !important;
+        text-decoration: none !important;
+    }
+}
+
+/* Mechanism for images alongside content, mainly for use in newsletters. */
+.float-right-image {
+    float: right;
+}
+
+/* The 450px cutoff was determined by testing in Gmail as a point
+   where an image looks good in either state. Logically it makes sense
+   since then the text still has the majority of the space in the
+   side-by-side view. */
+@media only screen and (min-width: 450px) {
+    .float-right-image {
+        max-width: 200px;
+    }
+}