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April 8, 2016 05:22
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Positioning relative to perfect center with flexbox
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| body { | |
| width: 100%; | |
| height: 100%; | |
| margin: 0; | |
| box-sizing: border-box; | |
| display: flex; | |
| flex-direction: column; | |
| justify-content: center; | |
| align-content: center; | |
| } | |
| body::after { | |
| content:""; | |
| position: absolute; | |
| z-index: -1; | |
| top: 0; | |
| bottom: 0; | |
| left: 50%; | |
| margin-left: -1px; | |
| border-left: 2px dashed red; | |
| } | |
| body::before { | |
| content:""; | |
| position: absolute; | |
| z-index: -1; | |
| left: 0; | |
| right: 0; | |
| top: 50%; | |
| margin-top: -1px; | |
| border-top: 2px dashed red; | |
| } | |
| .flex-filler { | |
| flex: 1; | |
| } | |
| .centered-thing { | |
| font-size: 50px; | |
| } | |
| .underthing { | |
| font-size: 20px; | |
| justify-self: start; | |
| } | |
| div { | |
| border-color: grey; | |
| border-style: dotted; | |
| margin: 2; | |
| } | |
| p { | |
| border-color: lime; | |
| border-style: dotted; | |
| text-align: center; | |
| color: #000; | |
| padding: 10; | |
| margin: 5; | |
| font-family: "Helvetica Neue", "Helvetica", "Arial", sans-serif; | |
| } |
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| html> | |
| <head> | |
| <link rel="stylesheet" href="style.css" type="text/css" /> | |
| </head> | |
| <body> | |
| <div class="spacer flex-filler"> </div> | |
| <div class="centered-thing"> | |
| <p>My div is perfectly centered.</p> | |
| <p>"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam, quis nos\ | |
| trud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla p\ | |
| ariatur. Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum."</p> | |
| </div> | |
| <div class="underthing flex-filler"> | |
| <p>I'm directly underneath</p> | |
| </div> | |
| </body> | |
| </html> |
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