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如何将CSS文件导入HTML文件中

一、HBuilder怎么把CSS文件导入HTML

对于HBuilder集成开发环境,可以按照以下步骤将CSS文件导入HTML文件中:

1、在项目文件夹中创建一个CSS文件,例如style.css。

/* style.css */
body {
    background-color: #eee;
}

2、在HTML文件中,使用link标签将CSS文件导入。

<head>
    <meta charset="UTF-8">
    <title>HBuilder</title>
    <link rel="stylesheet" href="style.css">
</head>
<body>
    <h1>Welcome to HBuilder</h1>
</body>

此时,HTML文件已经成功导入了CSS文件。可以通过修改style.css文件中的样式,来改变HTML中的页面样式。

二、如何建立CSS文件并导入HTML

在建立CSS文件并导入HTML时,需要注意以下几点:

1、建立一个CSS文件,例如style.css,文件中定义页面的样式。

/* style.css */
body {
    background-color: #eee;
}

2、在HTML文件中,使用link标签将CSS文件导入。

<head>
    <meta charset="UTF-8">
    <title>My Website</title>
    <link rel="stylesheet" href="style.css">
</head>
<body>
    <h1>Welcome to my website</h1>
</body>

此时,HTML文件已经成功导入了CSS文件。可以通过修改style.css文件中的样式,来改变HTML中的页面样式。

三、怎么把CSS文件导入HTML

在怎么把CSS文件导入HTML方面,还可以使用style标签将CSS样式直接编写在HTML文件中:

<head>
    <meta charset="UTF-8">
    <title>My Website</title>
    <style>
        body {
            background-color: #eee;
        }
    </style>
</head>
<body>
    <h1>Welcome to my website</h1>
</body>

此时,CSS样式直接写在HTML文件中了,与使用CSS文件导入的效果是一样的。

四、CSS文件如何导入HTML中运行

在CSS文件导入HTML中运行时,需要注意以下两点:

1、使用link标签将CSS文件导入HTML文件。

<head>
    <meta charset="UTF-8">
    <title>My Website</title>
    <link rel="stylesheet" href="style.css">
</head>
<body>
    <h1>Welcome to my website</h1>
</body>

2、确保引用的CSS文件路径正确。

例如,CSS文件在项目文件夹中的styles目录下,那么在HTML文件中应该这样写:

<head>
    <meta charset="UTF-8">
    <title>My Website</title>
    <link rel="stylesheet" href="styles/style.css">
</head>
<body>
    <h1>Welcome to my website</h1>
</body>

五、HTML用link导入CSS文件

在HTML中使用link标签导入CSS文件,可以分为以下两种方式:

1、使用rel属性指定样式表类型和href属性指定CSS文件的URL地址。

<head>
    <meta charset="UTF-8">
    <title>My Website</title>
    <link rel="stylesheet" type="text/css" href="style.css">
</head>
<body>
    <h1>Welcome to my website</h1>
</body>

2、使用link标签中的media属性指定CSS样式表应用的设备类型。

<head>
    <meta charset="UTF-8">
    <title>My Website</title>
    <link rel="stylesheet" type="text/css" href="style.css" media="screen">
</head>
<body>
    <h1>Welcome to my website</h1>
</body>

此时,屏幕设备类型就会应用style.css文件中的CSS样式。

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when-present<#else>when-missing. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)?? ---- ---- FTL stack trace ("~" means nesting-related): - Failed at: ${item.id} [in template "article/detail/index.ftl" at line 48, column 106] ---- Java stack trace (for programmers): ---- freemarker.core.InvalidReferenceException: [... Exception message was already printed; see it above ...] at freemarker.core.InvalidReferenceException.getInstance(InvalidReferenceException.java:134) at freemarker.core.EvalUtil.coerceModelToTextualCommon(EvalUtil.java:481) at freemarker.core.EvalUtil.coerceModelToStringOrMarkup(EvalUtil.java:401) at freemarker.core.EvalUtil.coerceModelToStringOrMarkup(EvalUtil.java:370) at freemarker.core.DollarVariable.calculateInterpolatedStringOrMarkup(DollarVariable.java:104) at freemarker.core.DollarVariable.accept(DollarVariable.java:63) at freemarker.core.Environment.visit(Environment.java:371) at freemarker.core.IteratorBlock$IterationContext.executedNestedContentForCollOrSeqListing(IteratorBlock.java:321) at freemarker.core.IteratorBlock$IterationContext.executeNestedContent(IteratorBlock.java:271) at freemarker.core.IteratorBlock$IterationContext.accept(IteratorBlock.java:244) at freemarker.core.Environment.visitIteratorBlock(Environment.java:645) at freemarker.core.IteratorBlock.acceptWithResult(IteratorBlock.java:108) at freemarker.core.IteratorBlock.accept(IteratorBlock.java:94) at freemarker.core.Environment.visit(Environment.java:335) at freemarker.core.Environment.visit(Environment.java:341) at freemarker.core.Environment.visit(Environment.java:341) at freemarker.core.Environment.process(Environment.java:314) at freemarker.template.Template.process(Template.java:383) at org.springframework.web.servlet.view.freemarker.FreeMarkerView.processTemplate(FreeMarkerView.java:332) at org.springframework.web.servlet.view.freemarker.FreeMarkerView.doRender(FreeMarkerView.java:266) at org.springframework.web.servlet.view.freemarker.FreeMarkerView.renderMergedTemplateModel(FreeMarkerView.java:220) at org.springframework.web.servlet.view.AbstractTemplateView.renderMergedOutputModel(AbstractTemplateView.java:181) at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:314) at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1431) at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1167) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1106) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:979) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1014) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:903) at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:564) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:885) at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:205) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) at com.software.filter.HttpSpiderIdentifyFilter.doFilter(HttpSpiderIdentifyFilter.java:51) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:167) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:340) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:391) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:896) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1744) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52) at java.base/java.lang.VirtualThread.run(VirtualThread.java:309)