前端新人学习笔记-html/css/js基础知识点_html/css_WEB-ITnose
即将毕业的软件工程大学生一枚，秋季招聘应聘的是Android，今年来到公司实习，要求做前端开发，所以一切只有现学，现在根据视频来学习，然后开这个博客记录一下自己的学习过程，废话不多说，开写。
4月6日学到的知识点：
一：
! 声明，注意的意思；
doc document 文档的意思；
type 类型的意思；
html就不用解释了；
连在一起的意思就是：注意，文档的类型是HTML。也就是声明你写的文件的文档类型，方便浏览器解析。
二：
声明代码的编码格式
注意：有些时候你声明了以UTF-8编码，但是在实际网页中中文还是显示乱码，这时候你可以去看看保存文件的时候是否采用UTF-8编码保存，因为只有保存文件的格式和网页声明的编码一致才不会导致乱码。
三：CSS样式表
三种形式：内部样式表，外部样式表（），内联样式表。
四：background复合属性
repeat:背景图重复，默认就是背景图重复，还有no-repeat(背景图不重复)，repeat-x(水平轴上背景图重复)，repeat-y(竖直背景图重复)
10px(x轴),50px(Y轴)也可为负数。center top(水平居中，竖直在顶端),fixed(背景固定，不管怎么拖动滚动条，该背景图都固定在相应位置。)
五：border复合属性
border-width:边框宽度；
border-style：边框样式；（solid 实线,dashed 虚线，dotted 点线,IE6不兼容）
border-color:边框颜色；
六：padding内边距
padding属性:上右下左
注意：内边距相当于给一个盒子加了填充厚度会影响盒子的大小，若想盒子大小保持不变，就要减少相应长宽.
七：margin外边距
块与块之间的距离。
注意：1，上下外边距会叠加，即上下两个div,设置上一个div的margin-bottom为30px,设置下面div的margin-top为30px,设置后总的外边距还是为30px,不会为60px;
2,
设置margin-right:auto,被设置对象会靠左；
设置margin-left:auto,被设置对象会靠右；
设置margin:auto 0 ,被设置对象会水平居中。
八：盒模型
九：常见样式
结构样式：width:宽度；
height：高度；
background：背景；
border：边框；
padding ： 内边距；
margin： 外边距；
文本样式：font-size:文字大小（一般为偶数，最小一般设置为12px）
font-family:字体；
color:文字颜色；
line-hight：行高；
text-align:文本对齐方式；
text-indent：文本缩进(2em);
font-weight:文字着重；
font-style:文字倾斜；
text-decaration:文本修饰（下划线，上划线，删除线）
letter-spacing:字母间距；
word-spacing:单词间距；
以上是今日所学的所有知识点总结，多学多用多记，fighting!!!!!!!!!!!!!!!
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