zulip/static/styles/compose.css

#compose_buttons {
    text-align: right;
    display: flex;
    flex-direction: row;
    align-items: center;

    .new_message_button {
        margin-left: 4px;

        .button.small {
            font-size: 1em;
            padding: 3px 10px;
            vertical-align: middle;
        }

        .compose_mobile_button {
            span {
                font-size: 1.2em !important;
                font-weight: 400;
                line-height: 1em;
            }
        }
    }

    .reply_button_container {
        flex: 1;
        min-width: 0;
        margin-left: 0;

        .compose_reply_button {
            width: 100%;
            text-align: left;
            overflow: hidden;
            white-space: nowrap;
            text-overflow: ellipsis;
        }
    }

    .mobile_button_container {
        @media (width >= $sm_min) {
            display: none;
        }
    }

    .stream_button_container,
    .private_button_container {
        @media (width < $sm_min) {
            display: none;
        }
    }
}

/* Main geometry for this element is in zulip.css */
#compose-content {
    border-top: 1px solid hsla(0, 0%, 0%, 0.07);
    transition: background-color 200ms linear;
    padding: 4px 4px 8px;
    border-left: 1px solid hsl(0, 0%, 93%);
    border-right: 1px solid hsl(0, 0%, 93%);
    height: 100%;
    display: flex;
    flex-flow: column;
    box-sizing: border-box;
}

.message_comp {
    display: none;
    padding: 5px 10px 0 5px;
}

.autocomplete_secondary {
    opacity: 0.8;
}

.active .autocomplete_secondary {
    opacity: 1;
}

.narrow_to_compose_recipient_current_view_help {
    margin: 0;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.compose_table {
    height: 100%;
    display: flex;
    flex-flow: column;

    .stream-selection-header-colorblock {
        &.message_header_private_message {
            border-radius: 3px 0 0 3px;
            border-bottom: 0;
            background-color: hsl(0, 0%, 27%);
        }
    }

    .right_part {
        padding: 0;
        display: flex;
        align-items: center;
        width: 100%;

        .fa-angle-right {
            font-size: 0.9em;
            -webkit-text-stroke: 0.05em;
            position: relative;
            margin: 0 5px;
        }

        a.narrow_to_compose_recipients {
            background: transparent;
            font-size: 18px;
            padding: 1px;
            line-height: 20px;
            opacity: 0.7;
            border: 0;
            margin-left: 3px;
            text-decoration: none;
            color: inherit;

            &:hover {
                opacity: 1;
            }
        }
    }

    .pm_recipient {
        margin-left: 5px;
        margin-right: 35px;
        display: flex;
        width: 100%;
    }

    #private-message .to_text {
        vertical-align: middle;

        font-weight: 600;
    }

    #compose-lock-icon,
    #compose-globe-icon {
        position: relative;
        left: 6px;
        top: 0.5px;
        width: 0;
    }

    #compose-globe-icon {
        left: 4.5px;

        .zulip-icon-globe {
            font-size: 12px;
        }
    }

    .message_header {
        background: none;
        background-color: hsl(0, 0%, 92%);
        border: none;
        border-radius: 0;
        box-shadow: none !important;
    }

    .messagebox {
        box-shadow: none !important;
    }
}

#send_message_form {
    margin: 0;
    height: 100%;

    .messagebox-wrapper {
        flex: 1;
    }

    .messagebox {
        /* normally 5px 14px; pull in the right and bottom a bit */
        cursor: default;
        padding: 0;
        background: none;
        box-shadow: none;
        border: none;
        height: 100%;
        display: flex;
        flex-flow: column;
    }

    .message_content {
        margin-right: 0;
    }
}

#below-compose-content {
    display: flex;
    flex-direction: column;
    width: 100%;
    margin-top: 6px;
    margin-bottom: -2px;

    .compose_bottom_top_container {
        display: flex;
    }

    .compose_bottom_bottom_container {
        display: flex;
        justify-content: space-between;
    }
}

#compose_limit_indicator {
    margin-right: 8px;
    font-size: 12px;
    color: hsl(39, 100%, 50%);
    align-self: center;

    &.over_limit {
        color: hsl(0, 76%, 65%);
        font-weight: bold;
    }
}

#compose {
    position: fixed;
    bottom: 0;
    left: 0;
    z-index: 2;
    width: 100%;

    background-color: hsl(0, 0%, 100%);
}

#compose-container {
    display: flex;
    flex-direction: column;
    width: 100%;
    /* This should match the value for .app-main */
    max-width: 1400px;
    margin: auto;
}

#compose_top {
    display: flex;
    justify-content: space-between;
    padding-bottom: 5px;
}

#compose_top_right {
    display: flex;
    align-items: center;
    margin-bottom: auto;

    button {
        background: transparent;
        color: inherit;
        font-size: 15px;
        font-weight: normal;
        line-height: 20px;
        opacity: 0.7;
        border: 0;
        padding: 0;
        margin-left: 4px;
        vertical-align: unset;
        text-shadow: none;

        &:hover {
            opacity: 1;
        }
    }
}

.collapse_composebox_button,
#compose_close {
    display: none;
}

.compose_resolved_topic,
.compose_invite_user,
.compose_private_stream_alert,
.compose-all-everyone,
.compose_not_subscribed {
    padding: 4px 0;
    display: flex;
    justify-content: space-between;
    position: relative;
}

#compose_not_subscribed_close {
    top: 0;
    right: 0;
    position: absolute;
}

.compose_resolved_topic_user_controls .compose_resolved_topic_close,
.compose_invite_user_controls .compose_invite_close,
.compose_private_stream_alert_controls .compose_private_stream_alert_close {
    display: inline-block;
    position: absolute;
    margin-top: -2px;
    margin-right: -2px;
    width: 10px;
}

.compose_resolved_topic_user_controls,
.compose-all-everyone-controls,
.compose_invite_user_controls,
.compose_private_stream_alert_controls {
    float: right;
    position: relative;
}

.compose_invite_user p,
.compose_resolved_topic p,
.compose_not_subscribed p {
    margin: 5px 20px;
    display: inline-block;
    max-width: calc(100% - 100px);
}

#error-message-sub-button {
    margin-right: 30px;
}

/* Like .nav-tabs > li > a */
div[id^="message-edit-send-status"],
#compose-send-status {
    padding: 8px 14px;
    margin-bottom: 8px;
    line-height: 20px;
    display: none;
}

#compose-send-status .progress {
    height: 10px;
    margin-bottom: 10px;
}

/* Like .alert .close */
.send-status-close,
.compose-send-status-close {
    font-size: 17px;
    font-weight: bold;
    color: hsl(0, 0%, 0%);
    text-shadow: 0 1px 0 hsl(0, 0%, 100%);
    opacity: 0.2;
    float: right;
}

.send-status-close:hover,
.compose-send-status-close:hover {
    cursor: pointer;
    opacity: 0.4;
}

#out-of-view-notification {
    position: relative;
    margin-bottom: 6px;

    background-color: hsla(152, 51%, 63%, 0.25);
    border: 1px solid hsla(0, 0%, 0%, 0.1);
    border-radius: 4px;

    .close {
        position: absolute;
        right: 8px;
        top: 4px;
        font-size: 17px;
        font-weight: bold;
        color: hsl(0, 0%, 0%);
        text-shadow: 0 1px 0 hsl(0, 0%, 100%);
        opacity: 0.2;
    }
}

.compose-notifications-content {
    padding: 4px 22px;
    text-align: center;
}

.composition-area {
    position: relative;
    flex: 1;
}

textarea.new_message_textarea {
    display: table-cell;
    width: calc(100% - 12px);
    padding: 5px;
    height: 1.5em;
    max-height: 22em;
    margin-bottom: 0;
    resize: vertical !important;
    margin-top: 5px;

    @keyframes flash {
        0% {
            box-shadow: none;
        }

        100% {
            box-shadow: 0 0 0 1pt hsl(0, 76%, 65%);
        }
    }

    &.over_limit,
    &.over_limit:focus {
        box-shadow: 0 0 0 1pt hsl(0, 76%, 65%);

        &.flash {
            animation: flash 0.5s ease-in-out infinite;
        }
    }
}

textarea.new_message_textarea,
.compose_table .recipient_box {
    border: 1px solid hsla(0, 0%, 0%, 0.2);
    box-shadow: none;
    transition: border 0.2s ease;

    &:focus {
        border: 1px solid hsl(0, 0%, 67%);
        box-shadow: none;
    }
}

input.recipient_box {
    margin: 0;
    height: 1.1em;
    border-radius: 3px;
}

#stream_message_recipient_stream.recipient_box {
    width: 20%;
    border-radius: 0 3px 3px 0;
    border-left: 0;

    @media (width > $sm_min) {
        min-width: 120px;
    }

    &:focus {
        border-left: none;
    }

    &.lock-padding {
        padding-left: 20px;
    }
}

#stream_message_recipient_topic.recipient_box {
    /* This width roughly corresponds to how long of a topic can appear in
       the left sidebar with a single digit unread count without being
       cut off. */
    width: 175px;
}

#private_message_recipient.recipient_box {
    width: 100%;
}

#compose-send-button {
    height: 24px;
    padding-top: 3px;
    padding-bottom: 3px;
    margin-bottom: 0;
    font-weight: 600;
    font-size: 0.9em;

    .loader {
        display: none;
        position: relative;
        top: -6px;
    }
}

.enter_sends_choices {
    .enter_sends_choice {
        display: flex;
        gap: 8px;
        padding-top: 4px;

        input[type="radio"] {
            position: relative;
            top: 5px;
        }

        &:first-child {
            padding: 0 0 4px;
            border-bottom: 1px solid hsla(0, 0%, 0%, 0.2);
        }
    }

    .enter_sends_choice_text {
        display: flex;
        flex-direction: column;
    }

    .enter_sends_minor,
    .enter_sends_minor kbd {
        opacity: 0.9;
        font-size: 11px;
        color: hsl(0, 0%, 50%);
    }
}

.enter_sends {
    font-size: 12px;
    height: 14px;
    padding-left: 4px;
    opacity: 0.7;
    margin-bottom: 5px;
    position: relative;
    top: -2px;
    cursor: pointer;

    @media (width < $mm_min) {
        font-size: 11px;
    }

    kbd {
        height: 16px;
        padding: 0 4px;
    }

    &:hover {
        opacity: 1;
    }

    .enter_sends_true,
    .enter_sends_false {
        display: none;
    }

    i {
        padding-left: 3px;
        font-size: 12px;
        font-weight: 600;
    }
}

#stream-message,
#private-message {
    display: flex;
}

#private-message {
    align-items: center;
    width: 100%;
}

.tippy-content .compose_control_buttons_container {
    .compose_gif_icon {
        bottom: 5px;
    }
}

.compose_control_buttons_container {
    margin-right: auto;
    display: flex;
    gap: 4px;
    align-items: center;

    .compose_gif_icon {
        font-size: 22px;
        height: 18px;
        line-height: 18px;
    }

    .fa-eye {
        position: relative;
        top: -0.7px;
    }

    .compose_control_menu {
        padding: 0 7px;
        font-size: 15px;
    }

    .compose_control_menu_wrapper {
        opacity: 0.7;
        padding: 0;
        margin: 0;

        &:hover {
            opacity: 1;
        }

        .compose_control_menu {
            opacity: 1;
        }
    }

    .hide-sm,
    .hide-lg {
        display: flex;
        align-items: center;
        gap: 4px;
        padding: 0;
        margin: 0;
    }

    .divider {
        color: hsl(0, 0%, 88%);
        font-size: 20px;
        margin: 0 3px;
    }

    .compose_draft_button {
        font-size: 15px;
        font-weight: 600;
        font-family: "Source Sans 3", sans-serif;
        padding: 0 5px;
        position: relative;
        top: 0.7px;
    }

    .compose_help_button {
        font-size: 20px;
        line-height: 17px;
    }
}

.compose_right_float_container {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    white-space: nowrap;
    gap: 4px;
    margin-top: 2px;
}

a.compose_control_button {
    padding: 5px;
    opacity: 0.7;
    color: inherit;
    text-decoration: none;
    font-size: 17px;
    text-align: center;

    &:hover {
        opacity: 1;
    }
}

/* This is used to override the
 * properties of `a.compose_control_button`
 * without using `!important`.
 */
a.compose_control_button.hide {
    display: none;
}

.drag {
    display: none;
    height: 18px;
    width: 100%;
    top: 23px;
    position: relative;
    cursor: ns-resize;
}

.preview_message_area {
    /* minus 5px padding. */
    width: calc(100% - 12px);
    padding: 5px;
    margin-top: 5px;
    /* the maximum height the textarea gets to. */
    max-height: 308px;
    /* the minimum height the textarea collapses to. */
    min-height: 42px;
    overflow: auto;

    border: 1px solid hsl(0, 0%, 67%);
    border-radius: 4px;
    background-color: hsla(0, 0%, 0%, 0.02);
    cursor: not-allowed;
}

.markdown_preview_spinner {
    margin: auto;
}

.dropdown-menu {
    ul {
        list-style: none;
        margin: 0;
        background: hsl(0, 0%, 100%);
    }

    .typeahead-header {
        margin: 0;
        padding-left: 20px;
        padding-right: 20px;
        padding-top: 4px;
        border-top: 1px solid hsla(0, 0%, 0%, 0.2);
        display: flex;
        align-items: center;
    }

    #typeahead-header-text {
        font-size: 12px;
    }

    &.typeahead {
        background: hsl(0, 0%, 100%);
    }
}

.compose_mobile_stream_button i,
.compose_mobile_private_button i {
    margin-right: 4px;
}

/* This max-width must be synced with message_viewport.is_narrow */
@media (width < $xl_min) {
    #compose-content {
        margin-right: 7px;
    }
}

@media (width < $md_min) {
    #compose-content {
        margin-right: 7px;
        margin-left: 7px;
    }
}

@media (width < $mm_min) {
    #stream_message_recipient_topic.recipient_box {
        /* The max-width here is designed to allow this to share space with
           the Stream input in small windows, without leaving empty space. */
        max-width: calc(100% - 90px);
        min-width: 110px;
    }

    #compose-content {
        margin-right: 5px;
        margin-left: 5px;
    }
}

#compose.compose-fullscreen {
    z-index: 99;

    #compose-container {
        height: 100%;
    }

    .message_comp {
        flex: 1;
        display: flex !important;
        flex-flow: column;
    }

    #compose-textarea,
    #preview_message_area {
        max-height: none !important;
        flex: 1;
    }
}