zulip/templates/zerver/emails/email.css

/* 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;
}

.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;
}

/* CSS for digest email content. */
.messages {
    width: 600px;
    font-size: 12px;
    font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
    overflow-y: auto;
}

.hot_convo_recipient_block {
    border: 1px solid #000;
    margin-bottom: 4px;
}

.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;
}

.missed_message {
    padding-bottom: 10px;
}

.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 senes
   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;
    }
}