jitsi-meet/css/_atlaskit_overrides.scss

/**
 * Mixins that mimic the way Atlaskit fills the screen with modals at low screen widths.
 */
@mixin full-size-modal-positioner() {
    height: 100%;
    left: 0;
    position: fixed;
    top: 0;
    max-width: 100%;
    width: 100%;
}

@mixin full-size-modal-dialog() {
    height: 100%;
    max-height: 100%;
    border-radius: 0;
}


/**
 * Keep overflow menu within screen vertical bounds and make it scrollable.
 */
.toolbox-button-wth-dialog > div:nth-child(2) {
    background: $menuBG;
    max-height: calc(100vh - #{$newToolbarSizeWithPadding} - 46px);
    margin-bottom: 4px;
    padding: 0;
    overflow-y: auto;
}

/**
 * Remove background color and box-shadow for the context menu container.
 */
.toolbox-button-wth-dialog.context-menu > div:nth-child(2) {
    background: transparent;
    box-shadow: none;
    overflow-y: initial;
}

.audio-preview > div:nth-child(2),
.video-preview > div:nth-child(2) {
    margin-bottom: 4px;
    outline: none;
    padding: 0;
}

/**
 * The following selectors keep the chat modal full-size anywhere between 100px
 * and 580px for desktop or 680px for mobile.
 */
@media (min-width: 100px) and (max-width: 320px) {
    .smiley-input {
        display: none;
    }
    .shift-right .focus-lock > div > div {
        @include full-size-modal-positioner();
    }

    .shift-right .focus-lock [role="dialog"] {
        @include full-size-modal-dialog();
    }
}

@media (min-width: 480px) and (max-width: 580px) {
    .shift-right .focus-lock > div > div {
        @include full-size-modal-positioner();
    }

    .shift-right .focus-lock [role="dialog"] {
        @include full-size-modal-dialog();
    }
}

@media (max-width: 580px) {
    // Override Atlaskit inline style for the modal background.
    // Important is unfortunately needed for that.
    .shift-right .focus-lock [role="dialog"][style] {
        background-color: $chatBackgroundColor !important;
    }

    // Remove Atlaskit padding from the chat dialog.
    .shift-right .focus-lock [role="dialog"] > div:first-child > div:nth-child(2) {
        padding: 0;
    }
}

div.Tooltip {
    color: #fff;
    font-size: 12px;
    line-height: 14px;
    padding: 8px;
}

// make modal full screen on landscape orientation
@media (max-height: 420px) {
    .atlaskit-portal {
        .css-1oc7v0j {
            height: 100%;
            padding: 0;
            max-width: 100%;
            top: 0;
            width: 100%;

            &> div {
                height: 100%;
            }
        }
    }
}