Created
October 17, 2020 20:24
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Shadow DOM tinkering
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>Shadow</title> | |
| <script> | |
| function addShadow() { | |
| const theDiv = document.getElementById("theDiv2") | |
| const shadowRoot = theDiv.attachShadow({mode: 'open'}) | |
| const para = document.createElement("p") | |
| para.textContent = "Hello, Again!" | |
| shadowRoot.appendChild(para) | |
| } | |
| function colorGreen() { | |
| document.body.querySelectorAll("p").forEach(function (el) { | |
| el.style.color = "#00FF00" | |
| }) | |
| } | |
| function shadowGreen() { | |
| const theDiv = document.getElementById("theDiv2") | |
| theDiv.shadowRoot.querySelectorAll("p").forEach(function (el) { | |
| el.style.color = "#00CC00" | |
| }) | |
| } | |
| </script> | |
| </head> | |
| <body onload="addShadow()"> | |
| <div id="theDiv"><p>Hello, World!</p></div> | |
| <div id="theDiv2"> | |
| </div> | |
| <button onclick="colorGreen()">Green</button> | |
| <button onclick="shadowGreen()">Shadow Green</button> | |
| </body> | |
| </html> |
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