riot-web/res/css/views/directory/_NetworkDropdown.scss

/*
Copyright 2020 The Matrix.org Foundation C.I.C.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

.mx_NetworkDropdown {
    height: 32px;
    position: relative;
    width: max-content;
    padding-right: 32px;
    margin-left: auto;
    margin-right: 9px;
    margin-top: 12px;

    .mx_AccessibleButton {
        width: max-content;
    }
}

.mx_NetworkDropdown_menu {
    min-width: 204px;
    margin: 0;
    box-sizing: border-box;
    border-radius: 4px;
    border: 1px solid $dialog-close-fg-color;
    background-color: $background;
    max-height: calc(100vh - 20px); // allow 10px padding on both top and bottom
    overflow-y: auto;
}

.mx_NetworkDropdown_menu_network {
    font-weight: bold;
}

.mx_NetworkDropdown_server {
    padding: 12px 0;
    border-bottom: 1px solid $input-darker-fg-color;

    .mx_NetworkDropdown_server_title {
        padding: 0 10px;
        font-size: $font-15px;
        font-weight: 600;
        line-height: $font-20px;
        margin-bottom: 4px;
        position: relative;

        // remove server button
        .mx_AccessibleButton {
            position: absolute;
            display: inline;
            right: 10px;
            height: 16px;
            width: 16px;
            margin-top: 2px;

            &::after {
                content: "";
                position: absolute;
                width: 16px;
                height: 16px;
                mask-repeat: no-repeat;
                mask-position: center;
                mask-size: contain;
                mask-image: url('$(res)/img/feather-customised/x.svg');
                background-color: $notice-primary-color;
            }
        }
    }

    .mx_NetworkDropdown_server_subtitle {
        padding: 0 10px;
        font-size: $font-10px;
        line-height: $font-14px;
        margin-top: -4px;
        margin-bottom: 4px;
        color: $muted-fg-color;
    }

    .mx_NetworkDropdown_server_network {
        font-size: $font-12px;
        line-height: $font-16px;
        padding: 4px 10px;
        cursor: pointer;
        position: relative;

        overflow: hidden;
        white-space: nowrap;
        text-overflow: ellipsis;

        &[aria-checked=true]::after {
            content: "";
            position: absolute;
            width: 16px;
            height: 16px;
            right: 10px;
            mask-repeat: no-repeat;
            mask-position: center;
            mask-size: contain;
            mask-image: url('$(res)/img/feather-customised/check.svg');
            background-color: $input-valid-border-color;
        }
    }
}

.mx_NetworkDropdown_server_add,
.mx_NetworkDropdown_server_network {
    &:hover {
        background-color: $header-panel-bg-color;
    }
}

.mx_NetworkDropdown_server_add {
    padding: 16px 10px 16px 32px;
    position: relative;
    border-radius: 0 0 4px 4px;

    &::before {
        content: "";
        position: absolute;
        width: 16px;
        height: 16px;
        left: 7px;
        mask-repeat: no-repeat;
        mask-position: center;
        mask-size: contain;
        mask-image: url('$(res)/img/feather-customised/plus.svg');
        background-color: $muted-fg-color;
    }
}

.mx_NetworkDropdown_handle {
    position: relative;

    &::after {
        content: "";
        position: absolute;
        width: 26px;
        height: 26px;
        right: -27.5px; // - (width: 26 + spacing to align with X above: 1.5)
        top: -3px;
        mask-repeat: no-repeat;
        mask-position: center;
        mask-size: contain;
        mask-image: url('$(res)/img/feather-customised/chevron-down-thin.svg');
        background-color: $primary-fg-color;
    }

    .mx_NetworkDropdown_handle_server {
        color: $muted-fg-color;
        font-size: $font-12px;
    }
}

.mx_NetworkDropdown_dialog .mx_Dialog {
    width: 45vw;
}