css之BackGround属性介绍
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CSS之Background属性介绍2006-08-23 00:35background可以定义的内容:
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background : background-color||background-image||background-repeat||background-attachment||background-position
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-------------------------
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background-color:transparent|color
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参数:
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transparent:背景色透明
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color:指定颜色。
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----------------------------------
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background-image:none|url(url)
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参数:
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none:无背景图
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url:使用绝对或相对地址指定背景图像
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-------------------------------
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background-repeat:repeat|no-repeat|repeat-x|repeat-y
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参数:
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repeat:背景图像在纵向和横向上平铺
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no-repeat:背景图像不平铺
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repeat-x:背景图像在横向上平铺
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repeat-y:背景图像在纵向平铺
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说明:
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设置或检索对象的背景图像是否及如何铺排。必须先指定对象的背景图像。
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对应的脚本特性为backgroundRepeat。
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----------------------------
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background-attachment:scroll|fixed
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参数:
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scroll : 背景图像是随对象内容滚动
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fixed : 背景图像固定
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-------------------------------
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background-position:length||length
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background-position:position||position
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参数:
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length:百分数|由浮点数字和单位标识符组成的长度值。
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position:top|center|bottom| left|center|right
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说明:
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设置或检索对象的背景图像位置。必须先指定background-image属性。默认值为:(0% 0%)。
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如果只指定了一个值,该值将用于横坐标。纵坐标将默认为50%。第二个值将用于纵坐标。
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该属性定位不受对象的补丁属性(padding)设置影响。
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对应的脚本特性为backgroundPosition。
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