เพิ่มเส้นขอบสีให้ทุกองค์ประกอบ HTML เพื่อดูโครงสร้างหน้าทันที
เพิ่มขอบสีให้ทุกองค์ประกอบ HTML เพื่อดูโครงสร้างเลย์เอาต์
Toggle outlines on ทุก element ด้วยคลิกเดียว — no configuration, no settings panel. Click once เพื่อดู all borders, click again to remove them. The fastest way to visualize layout structure บนหน้าเว็บใดก็ได้.
Different HTML elements get different outline colors for instant visual identification. Headers in blue, navigation in yellow, main content in green, headings in purple, paragraphs in pink, buttons in cyan, divs in gray. You can identify element types โดยไม่ต้อง reading the DOM.
Outlines make invisible CSS problems visible. Spot unexpected margins creating whitespace, padding pushing elements wider than expected, overflow causing horizontal scrollbars, or collapsed elements taking up zero height. ทุก box boundary becomes visible.
Nested outlines reveal the parent-child structure of the DOM. See how deeply elements are nested, which container wraps which content, and where the boundaries of each nesting level fall. Invaluable for understanding complex grid and flex layouts.
Activate บนหน้าเว็บใดก็ได้ — your own projects, client sites, competitor pages, or design references. The outlines are applied via CSS injection and don't modify the DOM structure or affect JavaScript behavior.
Outlines are drawn using CSS outline (not border), which means they don't add to the element's box model dimensions. The page layout stays exactly as it was — outlines are purely visual and don't cause ใดก็ได้ reflow.
โหมดเส้นขอบ covers the following, organized by category:
htmlbodyheaderfootermainsectionarticleasidenavh1–h6 headingsp paragraphsspana linksblockquoteprecodebuttoninputtextareaselectformlabeldivul / ol / litable / tr / tdfiguredetailsThat mysterious gap between sections? Turn on outlines and you'll immediately see if it's caused by a margin on the bottom element, padding on the parent container, or an empty div you didn't know was there. What takes minutes in DevTools takes seconds with Outline Mode.
Resize your browser window with outlines enabled to watch how the layout reflows across breakpoints. See which elements stack, which ones overflow, and where the grid or flexbox structure changes — all at a glance.
Too mใดก็ได้ nested divs? Unnecessary wrapper elements? Outline Mode makes over-nesting visually obvious — if you see 5+ concentric outlines around simple content, the markup could be simplified. Great for code review of frontend PRs.
Enable outlines on your homepage, then on a subpage. Do they share the same layout structure? Are margins and section widths consistent? Outlines make structural consistency (or inconsistency) immediately visible.
Show students how HTML elements create boxes, how the box model works with padding and margins, and how nesting creates หน้า hierarchy. Outline Mode turns abstract concepts into visible, interactive demonstrations.
เปิด DevSuite Pro dock ลอย and click the Outline Only Mode icon. Instantly, ทุก HTML element บนหน้า gets a colored outline border.
แต่ละ element type has a distinct color. Blue for structural elements (header, footer, section), green for main content areas, purple for headings, pink for paragraphs, cyan for buttons and inputs, yellow for navigation, and gray for generic divs and spans.
Look for unexpected gaps (caused by margins), elements extending beyond their containers (overflow), asymmetric spacing (inconsistent padding), or deeply nested wrappers (unnecessary div nesting). All become immediately visible.
Use Outline Mode as a starting point, then switch to CSS Inspector เพื่อตรวจสอบ specific values on elements you've identified, or Measure Distance to verify exact spacing between outlined elements.
คลิก Outline Mode icon again to remove all outlines and return to the normal page view. No cleanup needed — it's a pure toggle.
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