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February 20, 2023 12:54
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Rendering Elements After The HEAD Tag In JavaScript
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| <!doctype html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="utf-8" /> | |
| <meta name="viewport" content="width=device-width, initial-scale=1" /> | |
| <link rel="stylesheet" type="text/css" href="./demo.css" /> | |
| <style type="text/css"> | |
| /** | |
| * Creating a STACKING CONTEXT around the body. | |
| */ | |
| body { | |
| position: relative ; | |
| z-index: 0 ; | |
| } | |
| /** | |
| * Creating a CONTROL object for layering. Using a z-index of "999999", which is | |
| * HIGHER than the other two elements (below). However, the stacking context on the | |
| * BODY element changes how things are visually stacked. | |
| */ | |
| .box { | |
| position: fixed ; | |
| z-index: 999999 ; /* <--------- HIGH z-index value. */ | |
| } | |
| .static { | |
| border: 2px solid blue ; | |
| position: fixed ; | |
| z-index: 2 ; /* <--------- LOWER (than BOX) z-index value. */ | |
| } | |
| .dynamic { | |
| border: 2px solid hotpink ; | |
| position: fixed ; | |
| z-index: 2 ; /* <--------- LOWER (than BOX) z-index value. */ | |
| } | |
| </style> | |
| </head> | |
| <!-- !!!! AFTER HEAD ELEMENT. !!!! --> | |
| <!-- !!!! AFTER HEAD ELEMENT. !!!! --> | |
| <div class="static"> | |
| I am <strong>STATICALLY defined</strong> to be after the Head element. | |
| </div> | |
| <div class="dynamic"> | |
| I am <strong>DYNAMICALLY defined</strong> to be after the Head element. | |
| <script type="text/javascript"> | |
| document.head.after( document.querySelector( ".dynamic" ) ); | |
| // Remove the Script tag from the DOM (for funzies!). | |
| document.currentScript.remove(); | |
| </script> | |
| </div> | |
| <!-- !!!! BEFORE BODY ELEMENT. !!!! --> | |
| <!-- !!!! BEFORE BODY ELEMENT. !!!! --> | |
| <body> | |
| <h1> | |
| Inserting Elements After The HEAD Tag In JavaScript | |
| </h1> | |
| <div class="box"> | |
| <br /> | |
| </div> | |
| </body> | |
| </html> |
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