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next.js/examples/with-emotion/pages/index.js

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JavaScript

import React from 'react'
import styled, { hydrate, keyframes, css, injectGlobal } from 'react-emotion'
// Adds server generated styles to emotion cache.
// '__NEXT_DATA__.ids' is set in '_document.js'
if (typeof window !== 'undefined') {
hydrate(window.__NEXT_DATA__.ids)
}
injectGlobal`
html, body {
padding: 3rem 1rem;
margin: 0;
background: papayawhip;
min-height: 100%;
font-family: Helvetica, Arial, sans-serif;
font-size: 24px;
}
`
const basicStyles = css`
background-color: white;
color: cornflowerblue;
border: 1px solid lightgreen;
border-right: none;
border-bottom: none;
box-shadow: 5px 5px 0 0 lightgreen, 10px 10px 0 0 lightyellow;
transition: all 0.1s linear;
margin: 3rem 0;
padding: 1rem 0.5rem;
`
const hoverStyles = css`
&:hover {
color: white;
background-color: lightgray;
border-color: aqua;
box-shadow: -15px -15px 0 0 aqua, -30px -30px 0 0 cornflowerblue;
}
`
const bounce = keyframes`
from {
transform: scale(1.01);
}
to {
transform: scale(0.99);
}
`
const Basic = styled.div`
${basicStyles};
`
const Combined = styled.div`
${basicStyles};
${hoverStyles};
& code {
background-color: linen;
}
`
const Animated = styled.div`
${basicStyles};
${hoverStyles};
& code {
background-color: linen;
}
animation: ${props => props.animation} 0.2s infinite ease-in-out alternate;
`
export default () => {
return (
<div>
<Basic>Cool Styles</Basic>
<Combined>
With <code>:hover</code>.
</Combined>
<Animated animation={bounce}>Let's bounce.</Animated>
</div>
)
}