jitsi-meet/css/_audio-preview.scss

.audio-preview {
    &-content {
        background: #2A3A4B;
        font-size: 15px;
        line-height: 24px;
        max-height: 456px;
        overflow: auto;
        width: 328px;
    }

    &-header {
        color: #fff;
        display: flex;
        padding: 16px;

        &-icon {
            color: #A4B8D1;
            display: inline-block;
        }

        &-text {
            font-weight: bold;
            margin-left: 8px;
        }
    }

    &-entry {
        align-items: center;
        color: #fff;
        cursor: pointer;
        display: flex;
        padding: 12px 0;
        margin-left: 48px;

        &--selected {
            background: #1C2025;
            cursor: initial;
            margin-left: 0;
            padding-left: 21px;
        }

        &-text {
            color: #fff;
            font-size: 15px;
            display: inline-block;
            line-height: 24px;
            text-overflow: ellipsis;
            max-width: 213px;
            overflow: hidden;
            white-space: nowrap;
        }
    }

    &-speaker {
        position: relative;

        &:hover {
            .audio-preview-entry {
                background: #3F4E5E;
                margin-left: 0;
                padding-left: 48px;

                &--selected {
                    padding-left: 21px;
                }
            }

            .audio-preview-test-button {
                display: inline-block;
            }

            .audio-preview-entry-text {
                max-width: 196px;
            }
        }

        .audio-preview-entry-text {
            max-width: 256px;
        }
    }

    &-microphone {
        position: relative;

        &:hover {
            .audio-preview-entry {
                background: #3F4E5E;
                margin-left: 0;
                padding-left: 48px;

                &--selected {
                    padding-left: 21px;
                }
            }
        }

        .audio-preview-entry-text {
            max-width: 196px;
        }
    }

    &-icon {
        border-radius: 50%;
        display: inline-block;
        width: 14px;

        & svg {
            fill: #1C2025;
        }

        &--check {
            background: #31B76A;
            margin-right: 13px;
        }

        &--exclamation {
            margin-left: 6px;
            & svg {
                fill: #E54B4B;
            }
        }
    }

    &-test-button {
        display: none;
        background: #FFF;
        border: 1px solid #D1DBE8;
        border-radius: 3px;
        color: #1C2025;
        cursor: pointer;
        font-weight: 600;
        font-size: 15px;
        line-height: 24px;
        padding: 4px 16px;
        position: absolute;
        right: 16px;
        top: 8px;
    }

    &-meter-mic {
        position: absolute;
        right: 16px;
        top: 18px;
    }

   // Override @atlaskit/InlineDialog container which is made with styled components
    & > div > div:nth-child(2) > div > div {
        outline: none;
        padding: 0;
    }
}