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November 23, 2023 12:02
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explaining z-index and stacking content in css
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
| <title>Z-Index & Stacking Content</title> | |
| <style> | |
| /* this is the normal flow without grid/flex */ | |
| /* .wrapper { | |
| position: relative; | |
| display: flex; | |
| flex-direction: column; | |
| } | |
| .wrapper > * { | |
| width: 250px; | |
| height: 200px; | |
| } | |
| .wrapper > * + * { | |
| margin-top: -150px; | |
| opacity: 0.8; | |
| box-shadow: 0 -1px 10px rgba(0 0 0 / 60%); | |
| } | |
| .wrapper > :first-child{ | |
| background-color: cornsilk; | |
| border: 2px solid gold; | |
| z-index: 3; | |
| } | |
| .wrapper > :nth-child(2){ | |
| background-color: pink; | |
| border: 2px solid hotpink; | |
| z-index: 1; | |
| } | |
| .wrapper > :last-child{ | |
| background-color: wheat; | |
| border: 2px solid yellow; | |
| z-index: 2; | |
| } */ | |
| /* grid layout */ | |
| .wrapper { | |
| display: grid; | |
| grid-template-columns: repeat(5, 100px); | |
| max-width: 500px; | |
| } | |
| .wrapper > * { | |
| width: 250px; | |
| height: 200px; | |
| display: flex; | |
| flex-direction: column; | |
| align-items: flex-end; | |
| justify-content: flex-end; | |
| padding: 1em; | |
| opacity: 0.75; | |
| box-shadow: 0 -1px 10px rgba(0 0 0 / 60%); | |
| } | |
| .wrapper > :first-child{ | |
| background-color: cornsilk; | |
| border: 2px solid gold; | |
| z-index: 3; | |
| grid-column: 1/2; | |
| } | |
| .wrapper > :nth-child(2){ | |
| background-color: pink; | |
| border: 2px solid hotpink; | |
| z-index: 1; | |
| grid-column: 3/4; | |
| } | |
| .wrapper > :last-child{ | |
| background-color: wheat; | |
| border: 2px solid yellow; | |
| z-index: 2; | |
| grid-column: 4/5; | |
| } | |
| .box { | |
| background: rgb(10 67 159); | |
| } | |
| .box .child { | |
| position: relative; | |
| z-index: -1; | |
| background: pink; | |
| border: 1px solid hotpink; | |
| padding: 1rem; | |
| width: 275px; | |
| } | |
| .child{ | |
| font-weight: 900; | |
| } | |
| .top, .bottom { | |
| width: 250px; | |
| padding: 80px 20px; | |
| position: relative; | |
| } | |
| .inner { | |
| padding: 20px; | |
| background-color: wheat; | |
| border: 2px solid gold; | |
| } | |
| .top { | |
| z-index: 1; | |
| background-color: green; | |
| border: 2px solid springgreen; | |
| } | |
| .bottom { | |
| z-index: 2; | |
| margin-top: -90px; | |
| opacity: 0.8; | |
| box-shadow: 0 -1px 10px rgba(0 0 0 / 60%); | |
| background-color: coral; | |
| border: 22px solid brown; | |
| } | |
| .top > .inner { | |
| z-index: 999; | |
| } | |
| .bottom > .inner { | |
| z-index: 2; | |
| } | |
| </style> | |
| </head> | |
| <body> | |
| <h1>z-index</h1> | |
| <div class="wrapper"> | |
| <div>Z-index 3</div> | |
| <div>z-index 1</div> | |
| <div>z-index 2</div> | |
| </div> | |
| <hr> | |
| <h1>Negative Z-Index</h1> | |
| <div class="box"> | |
| <div class="child"> | |
| I will answer a million times | |
| </div> | |
| </div> | |
| <h2>Stacking Content</h2> | |
| <div class="grandParent"> | |
| <div class="top"> | |
| <code>z-index of 1</code> | |
| <div class="inner"> | |
| <code>z-index of 999</code> | |
| </div> | |
| </div> | |
| <div class="bottom"> | |
| <code>z-index of 2</code> | |
| <div class="inner"> | |
| <code>z-index of 2</code> | |
| </div> | |
| </div> | |
| </div> | |
| </body> | |
| </html> |
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