【简答题】请简述什么是CSS3 Sprites？ 如何使用Sprites？
【简答题】请简述什么是CSS3 Sprites？ 如何使用Sprites？
参考答案和解析
CSS3 Sprites： Sprites是指CSS3的精灵技术，它的本质是多张图片拼成一张图片。为了提高网页性能的原因而使用它们。一般来说，一个网站的请求需要越少，速度越快。 使用Sprites： 当访问该页面时，只需要载入一次图片，然后利用CSS的“background-image”、“background- repeat”、“background-position”组合进行背景定位，将一张大图片中的某个部分显示到网页的固定位置。
相关考题：
下列关于CSS Sprites说法错误的是()。 A.CSS Sprites是一种图片网页应用处理方式B.CSS Sprites可以一定程度加快页面的加载速度C.CSS Sprites允许将一个页面设计到的所有零星图片均包含到一张大图中D.CSS Sprites不能减少对服务器的请求数量以及请求的字节数
关于Sprites粒子的描述错误的是()A、Sprites粒子在赋予纹理贴图前显示为小正方形B、无论摄像机的摆放角度怎样变化，总是面朝摄像机C、Sprites粒子不能调入外部贴图D、如果纹理图片有Alpha通道，则Sprites粒子就使用图像的透明属性
资料：Happy wood sprites knows the way to Fenghuang city.Happy wood sprites will hold a big party along the Spirit Lake tonightThe Spirit Lake is located in North-east of hereThe density of tree branches and leaves could tell direction. Generally ,the direction that has More branches and leaves is the south.According to astrology,you could determine direction. Firstly, you should find the adle Big Dipper. In the direction of the handle you can find Poiaris and that direction is the north.打开信封，里面是一个请柬A recital of poems by Barbie Mariposa that retelllegends from the tribal culture of the Spirit Lake.Accompaniment by Happy wood sprites who will beplaying harp native spirit Lake instruments fromhis private collectionGreen spinach salad with vinaigrette dressingCream of mushroom soupGrilled salmon with choice of either roasted squashor steamed broccoliLemon meringue tartDinner will start promptly at midnight and endbefore sunrise is Tree House of Spirit Lake .Formal Dressing requires. How is the fish prepared?A.It is creamedB.It is steamedC.It is grilledD.It is roasted
资料：Happy wood sprites knows the way to Fenghuang city.Happy wood sprites will hold a big party along the Spirit Lake tonightThe Spirit Lake is located in North-east of hereThe density of tree branches and leaves could tell direction. Generally ,the direction that has More branches and leaves is the south.According to astrology,you could determine direction. Firstly, you should find the adle Big Dipper. In the direction of the handle you can find Poiaris and that direction is the north.打开信封，里面是一个请柬A recital of poems by Barbie Mariposa that retelllegends from the tribal culture of the Spirit Lake.Accompaniment by Happy wood sprites who will beplaying harp native spirit Lake instruments fromhis private collectionGreen spinach salad with vinaigrette dressingCream of mushroom soupGrilled salmon with choice of either roasted squashor steamed broccoliLemon meringue tartDinner will start promptly at midnight and endbefore sunrise is Tree House of Spirit Lake .Formal Dressing requires.What will Happy wood sprites contribute to the event?A.DancesB.PoetryC.PaintingsD.Music
请认真阅读下列教材片段，并按要求作答。[问题1][简答题]什么是运算能力？如何发展学生的运算能力？（10分）[问题2][简答题]如指导中年段小学生学习，试拟定教学目标。（10分）[问题3][简答题]依据拟定的教学目标，设计导入环节并说明理由。（20分）
下面有关CSS sprites说法错误的是（）A、允许你将一个页面涉及到的所有零星图片都包含到一张大图中去B、利用CSS的“background-image”，“background-repeat”，“background-position”的组合进行背景定位C、CSS Sprites虽然增加了总的图片的字节，但是很好地减少网页的http请求，从而大大的提高页面的性能D、CSS Sprites整理起来更为方便，同一个按钮不同状态的图片也不需要一个个切割出来并个别命名
关于Sprites粒子的描述错误的是（）。A、Sprites粒子在赋予纹理贴图前显示为小正方形B、无论摄像机的摆放角度怎样变化，总是面朝摄像机C、Sprites粒子不能调入外部贴图D、如果纹理图片有Alpha通道，Sprites粒子就使用图像的透明属性E、Sprites渲染类型允许显示位于每个粒子的纹理图像或图像序列
单选题关于Sprites粒子的描述错误的是（）。ASprites粒子在赋予纹理贴图前显示为小正方形B无论摄像机的摆放角度怎样变化，总是面朝摄像机CSprites粒子不能调入外部贴图D如果纹理图片有Alpha通道，Sprites粒子就使用图像的透明属性ESprites渲染类型允许显示位于每个粒子的纹理图像或图像序列
问答题解释下 CSS sprites，以及你要如何在页面或网站中使用它。