https://www.yaxi.net/2018-05-07/1786.html

<blockquote> 标签定义块引用。<blockquote> 与 </blockquote> 之间的所有文本都会从常规文本中分离出来,经常会在左、右两边进行缩进(增加外边距),而且有时会使用斜体。也就是说,块引用拥有它们自己的空间。


/* 雅兮网自用块引用样式样式 https://www.yaxi.net */
.post blockquote {
font: 14px/20px italic Times, serif;
color: #888;
padding: 18px;
background-color: #dddddd;
border-left: 15px solid #666666;
margin: 5px;
background-image: url(img/quote_open.png);
background-position: 15px 10px;
background-repeat: no-repeat;
text-indent: 23px;
line-height: 1.8;
}
.post blockquote p {
text-indent:23px;
}
.post blockquote p:last-child{
background-image: url(img/quote_close.png);
background-repeat: no-repeat;
background-position: bottom right;
}
我是一段被引用的文字
blockquote {
font: 16px/20px italic Times, serif;
color: #333;
padding: 18px;
background-color: #f5f5f5;
border-left: 15px solid #666666;
border-radius: 5px;
margin: 5px;
background-image: url(../img/quote_open.png);
background-position: 15px 10px;
background-repeat: no-repeat;
text-indent: 23px;
line-height: 1.8;
}




