css basics

1Cascading Style Sheets is a style sheet language used for describing the
2presentation of a document written in a markup language like HTML.
3
4CSS is a cornerstone technology of the World Wide Web, alongside HTML and
5JavaScript.

1      background-color: #ccc;
2      box-sizing: border-box;
3      font-family: 'Lucida Sans', 'Lucida Sans Regular', 'Lucida Grande', 'Lucida Sans Unicode', Geneva, Verdana, sans-serif;
4      color: #00f;
5      padding: 20px;
6      font-size: 20px;
7      margin: 10px auto;
8      width: 600px;
9      text-align: justify;
10      text-shadow: 1px 1px 2px #000;
11      box-shadow: 0px -8px 10px red , 20px  20px  red;
12      border-radius: 20px;