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Ben Alpert
447 lines
14 KiB
HTML
447 lines
14 KiB
HTML
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<title>React | Inline Styles</title>
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<h3>Reference</h3>
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Top-Level API
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Event System
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DOM Differences
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Special Non-DOM Attributes
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Reconciliation
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<h3>Tips</h3>
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<ul>
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<a href="/react/tips/introduction.html">Introduction</a>
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<a href="/react/tips/inline-styles.html" class="active">Inline Styles</a>
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<li>
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<a href="/react/tips/if-else-in-JSX.html">If-Else in JSX</a>
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<a href="/react/tips/self-closing-tag.html">Self-Closing Tag</a>
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<a href="/react/tips/maximum-number-of-jsx-root-nodes.html">Maximum Number of JSX Root Nodes</a>
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<li>
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<a href="/react/tips/style-props-value-px.html">Shorthand for Specifying Pixel Values in style props</a>
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<a href="/react/tips/children-props-type.html">Type of the Children props</a>
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<a href="/react/tips/controlled-input-null-value.html">Value of null for Controlled Input</a>
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<li>
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<a href="/react/tips/componentWillReceiveProps-not-triggered-after-mounting.html">componentWillReceiveProps Not Triggered After Mounting</a>
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</li>
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<li>
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<a href="/react/tips/props-in-getInitialState-as-anti-pattern.html">Props in getInitialState Is an Anti-Pattern</a>
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</li>
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<li>
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<a href="/react/tips/dom-event-listeners.html">DOM Event Listeners in a Component</a>
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<li>
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<a href="/react/tips/initial-ajax.html">Load Initial Data via AJAX</a>
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<li>
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<a href="/react/tips/false-in-jsx.html">False in JSX</a>
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<li>
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<a href="/react/tips/communicate-between-components.html">Communicate Between Components</a>
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<li>
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<a href="/react/tips/expose-component-functions.html">Expose Component Functions</a>
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</li>
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</ul>
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</div>
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</div>
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<div class="inner-content">
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<h1>Inline Styles</h1>
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<div class="subHeader"></div>
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<p>In React, inline styles are not specified as a string. Instead they are specified with an object whose key is the camelCased version of the style name, and whose value is the style's value, usually a string (<a href="/react/tips/style-props-value-px.html">more on that later</a>):</p>
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<div class="highlight"><pre><code class="js language-js" data-lang="js"><span class="cm">/** @jsx React.DOM */</span>
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<span class="kd">var</span> <span class="nx">divStyle</span> <span class="o">=</span> <span class="p">{</span>
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<span class="nx">color</span><span class="o">:</span> <span class="s1">'white'</span><span class="p">,</span>
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<span class="nx">backgroundImage</span><span class="o">:</span> <span class="s1">'url('</span> <span class="o">+</span> <span class="nx">imgUrl</span> <span class="o">+</span> <span class="s1">')'</span><span class="p">,</span>
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<span class="nx">WebkitTransition</span><span class="o">:</span> <span class="s1">'all'</span> <span class="c1">// note the capital 'W' here</span>
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<span class="p">};</span>
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<span class="nx">React</span><span class="p">.</span><span class="nx">renderComponent</span><span class="p">(</span><span class="o"><</span><span class="nx">div</span> <span class="nx">style</span><span class="o">=</span><span class="p">{</span><span class="nx">divStyle</span><span class="p">}</span><span class="o">></span><span class="nx">Hello</span> <span class="nx">World</span><span class="o">!<</span><span class="err">/div>, mountNode);</span>
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</code></pre></div>
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<p>Style keys are camelCased in order to be consistent with accessing the properties on DOM nodes from JS (e.g. <code>node.style.backgroundImage</code>). Vendor prefixes should begin with a capital letter. This is why <code>WebkitTransition</code> has an uppercase "W".</p>
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<footer class="wrap">
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<div class="left">
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A Facebook & Instagram collaboration.<br>
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<a href="/react/acknowledgements.html">Acknowledgements</a>
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