字体样式属性：
font-family:字体类型
font-size:字体大小
font-weight:字体粗细
font-style:字体风格
color:字体颜色
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<head><meta charset="UTF-8" /><title>Document</title><style type="text/css">#p1 div {font-family: 微软雅黑;/* 字体大小为14px */font-size: 14px;/* 字体粗细为bold */font-weight: bold;color: red;}#p2 {font-family: Arial;font-size: 28px;font-weight: lighter;font-style: italic;color: firebrick;}span{font-family: 宋体;font-size:30px;font-weight: 10;font-style: inherit;color:lightcoral}</style>
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<body><div id="p1"><div>HTML控制网页的结构</div></div><p id="p2">CSS控制网页的外观</p><span id="p3">JavaScript控制网页的行为</span>
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