西城桃乐蒂1126
nounthe length of time that something lasts or is able to continue 持续时间I worked with him over a span of six years. 我和他共事达六年之久。The project must be completed within a specific time span. 这项工程必须在规定期限内完成。Small children have a short attention span. 幼儿注意力持续时间短。See also:lifespana range or variety of something 范围；包括的种类~ (of sth)Managers have a wide span of control. 经理的职权范围很大。These forests cover a broad span of latitudes. 这些森林绵延在多个纬度上。the part of a bridge or an arch between one vertical support and another （桥或拱的）墩距，跨距，跨度The bridge crosses the river in a single span. 河上的桥为单跨桥。the width of something from one side to the other 宽度；翼展The kite has a span of 1.5 metres. 风筝宽 1.5 米。See also:wingspanverbto last all through a period of time or to cover the whole of it 持续；贯穿VNHis acting career spanned 55 years. 他的演艺生涯长达 55 年。Family photos spanning five generations were stolen. 一家五代人的照片失窃了。to include a large area or a lot of things 包括（广大地区）；涵盖（多项内容）VNThe operation, which spanned nine countries, resulted in 200 arrests. 这次行动涉及九个国家，逮捕了 200 人。to stretch right across something, from one side to the other 横跨；跨越VN
想想冬至
HTML 标签定义和用法 标签被用来组合文档中的行内元素。HTML 与 XHTML 之间的差异NONE提示和注释：提示：请使用 来组合行内元素，以便通过样式来格式化它们。注释：span 没有固定的格式表现。当对它应用样式时，它才会产生视觉上的变化。例子 some text.some other text.
颖的时光
span英文为跨度 的意思，但是在网页制作中它是html标签的一种完整标签为 标签被用来组合文档中的行内元素。class在html中用来定义标签的样式，可重复利用，针对不同的标签它可以定义长宽高以及背景颜色等等...例如、,其中main为class名字在css用以"."进行定义
