我目前正在学习聚合物,我正在努力解决Polymer网站上的一个例子。例如:https://www.polymer-project.org/1.0/toolbox/app-layout#condensing-header。
我的index.html与Sample工具栏部分中的相同,我刚刚用Condensing Header中的那个替换了主体。
以下是代码:
<!DOCTYPE html>
<html>
<head>
<!-- import latest release version of all components from polygit -->
<base href="https://polygit.org/components/">
<script src="webcomponentsjs/webcomponents-lite.js"></script>
<link rel="import" href="app-layout/app-toolbar/app-toolbar.html">
<link rel="import" href="app-layout/app-header/app-header.html">
<link rel="import" href="app-layout/app-toolbar/app-toolbar.html">
<link rel="import" href="paper-icon-button/paper-icon-button.html">
<link rel="import" href="paper-tabs/paper-tabs.html">
<!-- sample-content included for demo purposes only -->
<link rel="import" href="app-layout/demo/sample-content.html">
<style is="custom-style">
body {
/* No margin on body so toolbar can span the screen */
margin: 0;
}
app-toolbar {
/* Toolbar is the main header, so give it some color */
background-color: #1E88E5;
font-family: 'Roboto', Helvetica, sans-serif;
color: white;
--app-toolbar-font-size: 24px;
}
</style>
</head>
<body>
<app-header id="header" effects="waterfall" fixed condenses>
<app-toolbar>
<div title>Left</div>
<div title>Title</div>
<div title>Right</div>
</app-toolbar>
<paper-tabs selected="0" primary>
<paper-tab>Food</paper-tab>
<paper-tab>Drink</paper-tab>
<paper-tab>Life</paper-tab>
</paper-tabs>
</app-header>
</body>
</html>
让事情变得更轻松:Plunker
在Polymer教程中,左/标题/右是分别。在标题的左侧,中间和右侧,但在我的版本中,它们都在左侧。知道为什么吗?
由于