CSS光标cursor_html/css_WEB-ITnose
× 目录 [1]定义 [2]标准样式 [3]拓展样式 [4]私有样式 [5]定义样式 [6]常见应用
前面的话
在浏览器中,光标对于提供交互反馈很有用。通过在不同的场景中改变光标,就能赋予其不同的含义。
定义
cursor光标
值: [
初始值: auto
应用于: 所有元素
继承性: 有
标准样式
CSS2提供了相对较少的选择
url: 自定义光标的URLdefault: 默认光标,通常是一个箭头auto: 浏览器自动识别的光标crosshair : 十字线pointer: 手型指针move: 移动指针e-resize: 向东移动指针ne-resize: 向东北移动指针nw-resize: 向西北移动指针n-resize: 向北移动指针se-resize: 向东南移动指针sw-resize: 向西南移动指针s-resize: 向南移动指针w-resize: 向西移动指针text: 文本指针wait: 指示程序正忙help: 帮助指针
拓展样式
CSS3增加了更多的cursor的样式值
[注意]所有拓展样式IE7-浏览器都不支持
cursor:none (not IE8, Safari)cursor:context-menu (not Safari,Firefox,Chrome)cursor:cell (not Safari)cursor:alias (not Safari)cursor:copy (not IE,Safari)cursor:grab (not IE,Safari,Chrome)cursor:grabbing (not IE,Safari,Chrome)cursor:zoom-in (not IE,Safari)cursor:zoom-out (not IE,Safari)cursor:vertical-textcursor:no-dropcursor:not-allowedcursor:all-scrollcursor:ew-resizecursor:ns-resizecursor:nesw-resizecursor:nwse-resizecursor:col-resizecursor:row-resize
私有样式
有些浏览器还提供了增加浏览器前缀的私有样式
[注意]safari将-webkit-grab和-webkit-grabbing都解释为default
cursor:-webkit-grab; cursor: -moz-grab;cursor:-webkit-grabbing; cursor: -moz-grabbing;cursor:-webkit-zoom-in; cursor: -moz-zoom-in;cursor:-webkit-zoom-out; cursor: -moz-zoom-out;
自定义样式
所有浏览器都支持使用后缀名为.cur的文件,chrome、firefox、safari还支持使用普通图片制作光标
[注意]使用URL自定义样式,后面必须跟有一个逗号和某个通用关键字
//错误cursor: url('m.cur');//正确cursor: url('m.cur'),auto;
常见应用
链接的默认光标是手型指针pointer,通过光标的变化可以让访问者清楚的知道该元素是可点击的
元素的title属性用来提供元素的额外信息,配合help光标可以得到更好的表现方式
span[title]{ cursor: help; border-bottom: 1px solid gray;}
<div><span title="Cascading Style Sheets">CSS</span> is much too interesting</div>

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