LingQ Extension(Custom Layouts, GPT, AI-TTS, Lesson Audio Generation, etc.)

You need to change the margin values in the code manually.

Left Article margin (currently 10px)

        .loadedContent {
            padding: 0 0 0 10px !important;;
        }

Left YT video margin (currently 10px(last))

        .video-player:not(.is-minimized) > .modal-content {
            max-width: var(--width-big) !important;
            margin: 0 0 10px 10px !important;
            border-radius: 0.75rem !important;
        }