73bcce88
 luigser
COMPONENTS
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# paper-header-panel
`paper-header-panel` contains a header section and a content panel section.
__Important:__ The `paper-header-panel` will not display if its parent does not have a height.
Using layout classes, you can make the `paper-header-panel` fill the screen
<body class="fullbleed layout vertical">
<paper-header-panel class="flex">
<paper-toolbar>
<div>Hello World!</div>
</paper-toolbar>
</paper-header-panel>
</body>
Special support is provided for scrolling modes when one uses a paper-toolbar or equivalent for the
header section.
Example:
<paper-header-panel>
<paper-toolbar>Header</paper-toolbar>
<div>Content goes here...</div>
</paper-header-panel>
If you want to use other than `paper-toolbar` for the header, add `paper-header` class to that
element.
Example:
<paper-header-panel>
<div class="paper-header">Header</div>
<div>Content goes here...</div>
</paper-header-panel>
To have the content fit to the main area, use the `fit` class.
<paper-header-panel>
<div class="paper-header">standard</div>
<div class="fit">content fits 100% below the header</div>
</paper-header-panel>
## Modes
Controls header and scrolling behavior. Options are `standard`, `seamed`, `waterfall`, `waterfall-tall`, `scroll` and `cover`. Default is `standard`.
Mode | Description
----------------|-------------
`standard` | The header is a step above the panel. The header will consume the panel at the point of entry, preventing it from passing through to the opposite side.
`seamed` | The header is presented as seamed with the panel.
`waterfall` | Similar to standard mode, but header is initially presented as seamed with panel, but then separates to form the step.
`waterfall-tall` | The header is initially taller (`tall` class is added to the header). As the user scrolls, the header separates (forming an edge) while condensing (`tall` class is removed from the header).
`scroll` | The header keeps its seam with the panel, and is pushed off screen.
`cover` | The panel covers the whole `paper-header-panel` including the header. This allows user to style the panel in such a way that the panel is partially covering the header.
Example:
<paper-header-panel mode="waterfall">
<div class="paper-header">standard</div>
<div class="content fit">content fits 100% below the header</div>
</paper-header-panel>
## Styling header panel:
To change the shadow that shows up underneath the header:
paper-header-panel {
--paper-header-panel-shadow: {
height: 6px;
bottom: -6px;
box-shadow: inset 0px 5px 6px -3px rgba(0, 0, 0, 0.4);
};
}
To change the panel container in different modes:
paper-slider {
--paper-header-panel-standard-container: {
border: 1px solid gray;
};
--paper-header-panel-seamed-container: {
border: 1px solid gray;
};
--paper-header-panel-waterfall-container: {
border: 1px solid gray;
};
--paper-header-panel-waterfall-tall-container: {
border: 1px solid gray;
};
--paper-header-panel-scroll-container: {
border: 1px solid gray;
};
--paper-header-panel-cover-container: {
border: 1px solid gray;
};
}
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