<font>周边知识点_html/css_WEB-ITnose

1 <h1>left margin = <small>24px</small></h1>2 <h2>left margin = <small>18px</small></h2>3 <p>left margin = <small>12px</small></p>

1 h1{font-size:24px;}2 h2{font-size:18px;}3 p{font-size:12px;}4 h1,h2,p{margin-left:1em;}

1 p{font-weight:normal;}/*400，更粗是bold对应700，其中最小值为700*/2 p em{font-weight:bolder;}/*700*/3 4 h1{font-weight:bold;}/*700，更粗假设没有关键字，则设置为下一个更大的数字，最大为900*/5 h1 b{font-weight:bolder;}/*800*/

1 <style type="text/css">2     #demo{text-indent:3%;}3 </style>

1 <div id="demo">2     This is the first line.3     <p>This is the second line while this will also <br>get the text indent style.</p>4 </div>

 1 <style type="text/css"> 2     body{font-size:10px;line-height:10px;} 3     /*由于大多数浏览器默认font-size最小值为12px,所以此处body设置的字体大小其实为12px*/ 4     5     .paragraphA{line-height:1em;}/*继承字体大小为12px，line-height为12*1=12px*/ 6     .paragraphA p{font-size:18px;}/*line-height为继承的12px*/ 7  8     .paragraphB{line-height:1;}/*使用缩放因子，运用于该元素和所有子元素，各元素根据自己字体大小值计算line-height为12*1=12px*/ 9     .paragraphB p{font-size:14px;}/*自身大小值*缩放因子：line-height为14*1=14px*/10 11     .paragraphC p{font-size:12px;line-height:150%;}/*根据自身指定字体大小计算line-height为12*150%=18px*/12 </style>

1 <div class="paragraphA">2     <p>This is paragraph A which gets a line-height equals 12px.</p>3 </div>4 <div class="paragraphB">5     <p>This is paragraph B which gets a line-height equals 14px.</p>6 </div>7 <div class="paragraphC">8     <p>This is paragraph C which gets a line-height equals 18px.</p>9 </div>