＜pre＞标签内文字的字体字号及换行等样式定义

.demo pre
		{
			/*字体样式*/
			font-family: micsoft yahei;
			font-size: 16px;
			line-height: 2;
			color: #FFF;
			/*定义宽度*/
			width: 800px;
			margin: auto;
			padding: 10px;
			/*背景色*/
			background: #000;
			/*pre文字自动换行*/
			white-space: pre-wrap;
			white-space: -moz-pre-wrap;
			white-space: -pre-wrap;
			white-space: -o-pre-wrap;
			/*长单词换行下一行*/
			word-wrap: break-word;
			/*两端对齐，最后一样右对齐*/
			text-align: justify;
			text-align-last: right;
			
		}