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3. Introducing @extend
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| <html> | |
| <body> | |
| <div class="message-box">Hey Something happened</div> | |
| <div class="message-box--success">Yay something worked!</div> | |
| <div class="message-box--error">Warning Something is bad here <a href="#">Details</a></div> | |
| <footer>© 2014 - Someone <a href="#">legal link</a></a> </footer> | |
| </body> | |
| </html> |
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| // ---- | |
| // Sass (v3.3.14) | |
| // Compass (v1.0.1) | |
| // ---- | |
| // More Variables - Introducing extends | |
| // To remove duplication | |
| // Color Variables | |
| $grey-light: #444; | |
| $grey-dark: #ddd; | |
| $red: #ffaaaa; | |
| $red-dark: darken($red, 50); // Added new red to variables | |
| $red-extradark: darken($red, 80); | |
| $green: #aaffaa; | |
| // Layout Variables | |
| $margins: 2em; | |
| $padding: 1em; | |
| .message-box { | |
| background-color: $grey-dark; | |
| border: 1px solid $grey-light; | |
| margin: $margins; | |
| padding: $padding; | |
| text-align: center; | |
| } | |
| //// BEFORE | |
| .message-box--success { | |
| background-color: $green; | |
| border: 1px solid $grey-light; | |
| margin: $margins; | |
| padding: $padding; | |
| text-align: center; | |
| } | |
| .message-box--error { | |
| background-color: $red; | |
| border: 1px solid $grey-light; | |
| margin: $margins; | |
| padding: $padding; | |
| text-align: center; | |
| a { | |
| color: $red-dark; | |
| &:hover, &:active, &:focus { | |
| color: $red-extradark; | |
| } | |
| } | |
| } | |
| //// AFTER | |
| // .message-box--success { | |
| // @extend .message-box; | |
| // background-color: $green; | |
| // } | |
| // .message-box--error { | |
| // @extend .message-box; | |
| // background-color: $red; | |
| // a { | |
| // color: $red-dark; | |
| // &:hover, &:active, &:focus { | |
| // color: $red-extradark; | |
| // } | |
| // } | |
| // } | |
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| .message-box { | |
| background-color: #dddddd; | |
| border: 1px solid #444444; | |
| margin: 2em; | |
| padding: 1em; | |
| text-align: center; | |
| } | |
| .message-box--success { | |
| background-color: #aaffaa; | |
| border: 1px solid #444444; | |
| margin: 2em; | |
| padding: 1em; | |
| text-align: center; | |
| } | |
| .message-box--error { | |
| background-color: #ffaaaa; | |
| border: 1px solid #444444; | |
| margin: 2em; | |
| padding: 1em; | |
| text-align: center; | |
| } | |
| .message-box--error a { | |
| color: #aa0000; | |
| } | |
| .message-box--error a:hover, .message-box--error a:active, .message-box--error a:focus { | |
| color: #110000; | |
| } |
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| <html> | |
| <body> | |
| <div class="message-box">Hey Something happened</div> | |
| <div class="message-box--success">Yay something worked!</div> | |
| <div class="message-box--error">Warning Something is bad here <a href="#">Details</a></div> | |
| <footer>© 2014 - Someone <a href="#">legal link</a></a> </footer> | |
| </body> | |
| </html> |
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