element-web/res/css/views/settings/_LayoutSwitcher.pcss

/*
Copyright 2020 - 2021 The Matrix.org Foundation C.I.C.
Copyright 2021 Šimon Brandner <simon.bra.ag@gmail.com>

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_LayoutSwitcher_LayoutSelector {
    display: flex;
    flex-direction: column;
    /**
     * The settings form has a default gap of 10px
     * We want to have a bigger gap between the layout options
     */
    gap: var(--cpd-space-4x) !important;

    .mxLayoutSwitcher_LayoutSelector_LayoutRadio {
        border: 1px solid var(--cpd-color-border-interactive-primary);
        border-radius: var(--cpd-space-2x);

        .mxLayoutSwitcher_LayoutSelector_LayoutRadio_inline {
            display: flex;
            /*
             * 10px
             */
            gap: calc(var(--cpd-space-2x) + var(--cpd-space-0-5x));
            align-items: center;
        }

        .mxLayoutSwitcher_LayoutSelector_LayoutRadio_inline,
        .mxLayoutSwitcher_LayoutSelector_LayoutRadio_EventTilePreview {
            margin: var(--cpd-space-3x);
        }

        /**
         * Override the event tile style to make it fit in the selector
         * Tweak also hover style and remove action bar
         */
        .mxLayoutSwitcher_LayoutSelector_LayoutRadio_EventTilePreview {
            pointer-events: none;

            .mx_EventTile {
                margin: 0;

                /**
                 * Hide the message options and message action bar in the preview
                 */
                .mx_EventTile_msgOption,
                .mx_MessageActionBar {
                    display: none;
                }

                .mx_EventTile_content {
                    margin-right: 0;
                }

                &[data-layout="group"] {
                    margin-top: calc(var(--cpd-space-3x) * -1);
                }

                /**
                 * Add margin to center the bubble
                 */
                &[data-layout="bubble"] {
                    /**
                     * Add the layout margin and the margin to vertically center the bubble
                     */
                    margin-top: var(--cpd-space-6x);
                    margin-right: 34px;
                    flex-shrink: 1;
                }

                .mx_EventTile_line {
                    max-width: 100%;
                }
            }
        }

        .mxLayoutSwitcher_LayoutSelector_LayoutRadio_separator {
            border-top: 0;
            border-bottom: 1px solid var(--cpd-color-border-interactive-secondary);
        }
    }
}