JS 参考手册

JS 参考手册(类别排序) JS 参考手册(字母排序)

JavaScript

JS Array JS Boolean JS Classes JS Date JS Error JS Global JS JSON JS Math JS Number JS 运算符 JS RegExp JS 语句 JS String

HTML DOM

DOM Attributes DOM Document DOM Element DOM Events DOM Event 对象 DOM HTMLCollection DOM Location DOM Navigator DOM Screen DOM Style
alignContent alignItems alignSelf animation animationDelay animationDirection animationDuration animationFillMode animationIterationCount animationName animationTimingFunction animationPlayState background backgroundAttachment backgroundColor backgroundImage backgroundPosition backgroundRepeat backgroundClip backgroundOrigin backgroundSize backfaceVisibility border borderBottom borderBottomColor borderBottomLeftRadius borderBottomRightRadius borderBottomStyle borderBottomWidth borderCollapse borderColor borderImage borderImageOutset borderImageRepeat borderImageSlice borderImageSource borderImageWidth borderLeft borderLeftColor borderLeftStyle borderLeftWidth borderRadius borderRight borderRightColor borderRightStyle borderRightWidth borderSpacing borderStyle borderTop borderTopColor borderTopLeftRadius borderTopRightRadius borderTopStyle borderTopWidth borderWidth bottom boxShadow boxSizing captionSide caretColor clear clip color columnCount columnFill columnGap columnRule columnRuleColor columnRuleStyle columnRuleWidth columns columnSpan columnWidth counterIncrement counterReset cursor direction display emptyCells filter flex flexBasis flexDirection flexFlow flexGrow flexShrink flexWrap cssFloat font fontFamily fontSize fontStyle fontVariant fontWeight fontSizeAdjust height isolation justifyContent left letterSpacing lineHeight listStyle listStyleImage listStylePosition listStyleType margin marginBottom marginLeft marginRight marginTop maxHeight maxWidth minHeight minWidth objectFit objectPosition opacity order orphans outline outlineColor outlineOffset outlineStyle outlineWidth overflow overflowX overflowY padding paddingBottom paddingLeft paddingRight paddingTop pageBreakAfter pageBreakBefore pageBreakInside perspective perspectiveOrigin position quotes resize right scrollBehavior tableLayout tabSize textAlign textAlignLast textDecoration textDecorationColor textDecorationLine textDecorationStyle textIndent textOverflow textShadow textTransform top transform transformOrigin transformStyle transition transitionProperty transitionDuration transitionTimingFunction transitionDelay unicodeBidi userSelect verticalAlign visibility width wordBreak wordSpacing wordWrap widows zIndex
DOM Window

Web APIs

API Console API Geolocation API History API Storage

HTML 对象

<a> <abbr> <address> <area> <article> <aside> <audio> <b> <base> <bdo> <blockquote> <body> <br> <button> <canvas> <caption> <cite> <code> <col> <colgroup> <datalist> <dd> <del> <details> <dfn> <dialog> <div> <dl> <dt> <em> <embed> <fieldset> <figcaption> <figure> <footer> <form> <head> <header> <h1> - <h6> <hr> <html> <i> <iframe> <img> <ins> <input> button <input> checkbox <input> color <input> date <input> datetime <input> datetime-local <input> email <input> file <input> hidden <input> image <input> month <input> number <input> password <input> radio <input> range <input> reset <input> search <input> submit <input> text <input> time <input> url <input> week <kbd> <label> <legend> <li> <link> <map> <mark> <menu> <menuitem> <meta> <meter> <nav> <object> <ol> <optgroup> <option> <output> <p> <param> <pre> <progress> <q> <s> <samp> <script> <section> <select> <small> <source> <span> <strong> <style> <sub> <summary> <sup> <table> <tbody> <td> <tfoot> <th> <thead> <tr> <textarea> <time> <title> <track> <u> <ul> <var> <video>

其他参考手册

CSSStyleDeclaration JS 类型转换


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Style orphans 属性

❮ Style 对象

实例

更改打印或打印预览的 orphans 属性:

<html>
<head>
<script>
function ChangeOrphans() {
  document.getElementById("p1").style.orphans = document.getElementById("orphans").value;
}
</script>
<style>
.othercontent {
  width: 400px;
  border-top: 19cm solid #c3c3c3;
}

@page {
  /* 设置打印页面的大小 */
  size:21cm 27cm;
  margin-top:2cm;
}

@media print {
  .orphans {
    orphans:2;
  }
}
</style>
</head>

<body>
<div class="othercontent">
<input id="orphans" value="2">
<button onclick="ChangeOrphans();">Change orphans</button>

<p style="font-size:120%" id="p1">
Change orphans and see the print preview.<br>
Line 2<br>
Line 3<br>
Line 4<br>
Line 5<br>
Line 6<br>
Line 7<br>
Line 8<br>
</p>

</body>
</html>
亲自试一试 »

定义和用法

orphans 属性设置或返回一个元素必须在页面底部的可见行的最小数量(用于打印或打印预览)。

orphans 属性仅影响块级元素。

提示: orphans:5 意味着至少有 5 行必须在分页符上面可见。

提示: widows 属性设置或返回一个元素必须在页面顶部的可见行的最小数量。


浏览器支持

属性
orphans Yes 不支持 不支持 不支持 Yes


语法

返回 orphans 属性:

object.style.orphans

设置 orphans 属性:

object.style.orphans = "number|initial|inherit"

属性值

描述
number 一个规定可见行的最小数量的整数。默认值是 2。
initial 设置该属性为它的默认值。请参阅 initial
inherit 从父元素继承该属性。请参阅 inherit

技术细节

默认值: 2
返回值: 一个字符串,表示页面底部要打印的最小行数
CSS 版本 CSS2

❮ Style 对象