字体样式变成斜体font-style:italic;
字体样式加粗font-weight:bold;
字体样式变大font-size:20px
字体样式变大font-size:1em;1em默认是16px
字体样式font-family:"宋体“
字体样式font-family:"微软雅黑“
字体样式变成斜体font-style:italic;
字体样式加粗font-weight:bold;
字体样式变大font-size:20px
字体样式变大font-size:1em;1em默认是16px
字体样式font-family:"宋体“
字体样式font-family:"微软雅黑“