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css 讓文字不被選中之-moz-user-select 屬性介紹

  發(fā)布時間:2024-05-05 11:31:48   作者:佚名   我要評論
讓文字不被選中,應該有一個css屬性進行控制,結果網(wǎng)上查了下發(fā)現(xiàn)了-moz-user-select 屬性介紹

他在ie下也能選中文字,但是選中其他列表,不會選中文字,原來它是在不同div中,屬于不同的范圍,而同事是放在同一個table中,當然會選中。
而在firefox下,文字不會被選中,查看google calender的css,原來還有-moz-user-select這個屬性,很好玩!
最后采用一個了js方法,即onselectstart=function{return false;},不讓頁面進行選擇,呵呵,這是很多網(wǎng)站不讓復制采用的方法。

防止選取 <div> 元素的文本:

div {
  -webkit-user-select: none; /* Safari */
  -ms-user-select: none; /* IE 10+ and Edge */
  user-select: none; /* Standard syntax */
}

Summary
-moz-user-select is a Mozilla property extension to CSS that is used to determine whether or not an element may have its content selected.

Media: interactive

Possible uses include: prohibiting the selection of content in attempts to reduce blatant copying.

Syntax
TARGET_ELEMENT{-moz-user-select: none;}Legal Values

ValueDescription
inheritInherit the value from the parent element.
noneNone of the content may be selected.
textOnly the text within the element may be selected.
elementA single element may be selected (from many).
elementsMultiple elements may be selected.
allThe contents must either be selected in entirety or none at all.
toggleThe contents are selected "following a standard toggling content model" [1].
tri-stateunknown
-moz-allunknown

Usage Examples

This sample code provides a simple "Hello, World!" text which prevents the user from selecting the content:

<span style="-moz-user-select: none;">
Hello, World!
</span>

Notes

This property is similar to the user-select property of CSS3.

When the 'none' value was applied to a heading element the content could still be selected.

According to the W3C, the "User agent's default style sheet may override this value. For example, user agents typically do not allow selection of the contents of a BUTTON element. [2] As the -moz-user-select was designed to mimic the user-select property, the same applies.

Specification Conformance

Doesn't conform to CSS standards; A Mozilla CSS Extension.

Browser Compatibility

Netscape 6+
Mozilla 0.6+
Firefox 1.0+

See Also

-moz-user-focus
-moz-user-input
-moz-user-modify

css中的 “-moz-user-select”和“-khtml-user-select”屬性是什麼意思?以及它們的用法?

<!DOCTYPE HTML>
<html lang="en-US">
<head>
<meta charset="UTF-8">
<title></title>
<style type="text/css">
h1{
-moz-user-select:-moz-none;
}
</style>
</head>
<body>
<h1>這里在firefox中會顯示不同</h1>
<pre>
屏蔽選擇的樣式定義:-moz-user-select屬性(只支持ff)。
屬性有三個屬性值:
1、 none:用none,子元素所有的文字都不能選擇,包括input輸入框中的文字也不能選擇。
2、 -moz-all:子元素所有的文字都可以被選擇,但是input輸入框中的文字不可以被選擇。
3、 -moz-none:子元素所有的文字都不能選擇,但是input輸入框中的文字除外。
IE瀏覽器下是通過 onselectstart=”javascript:return false;”事件來實現(xiàn)該功能。
</pre>
</body>
</html>

-khtml-是蘋果的那個瀏覽器的 好像現(xiàn)在使用-webkit-user-select: none

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