zoukankan      html  css  js  c++  java
  • CSS(refer to my training)

    一.What is CSS
    1.CSS stands for Cascading Style Sheets
    2.Styles define how to display HTML elements
    3.Style Sheets Can Save a Lot of Work
    二. Cascading Order
    What style will be used when there is more than one style specified for an HTML element?
    1. Browser default
    2. External style sheet
    3. Internal style sheet (inside the <head> tag)
    4. Inline style (inside an HTML element) 
     Number four has the higheset priority
    三.CSS Syntax
    The CSS syntax is made up of three parts: a selector, a property and a value:
    selector {property: value}
    body {color: black}
    p {font-family: "sans serif"}
    p {
      text-align: center;
      color: black;
       font-family: arial
    }


    .center {text-align: center}
    <h1 class="center"> This heading will be center-aligned </h1>
    <p class="center"> This paragraph will also be center-aligned. </p>

    You can also define styles for HTML elements with the id selector. The id selector is defined as a #.The style rule below will match the element that has an id attribute with a value of "green":
     #green {color: green}
    The style rule below will match the p element that has an id with a value of "para1":
     p#para1 { text-align: center; color: red }

  • 相关阅读:
    8 盒子模型
    7 display属性
    如何提高运维价值体系
    Python学习之OS模块初识
    7、MongoDB学习之游标
    Python 学习之文件对象的属性和方法简介
    Python集合set()操作详解
    Python中的字典介绍
    Python序列之元组
    Python序列之列表
  • 原文地址:https://www.cnblogs.com/engine1984/p/1109277.html
Copyright © 2011-2022 走看看