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语义化是给其他程序猿,更是给搜索引擎。

比如我一个页面可以这样写

<div class="body">
 <div class="nav"> <div class="nav-item">Home</div> <div class="nav-item">My Articles</div> </div> <div class="sidemenu"> <div class="sidemenu-item">Like</div> <div class="sidemenu-item">Share</div> <div class="sidemenu-item">Add to favorite</div> </div> <div class="container"> <div class="heading">This is the heading</div> <div class="content"> Lorem ipsum dolor sit amet consectetur adipisicing elit. Rerum, consequuntur! </div> <div class="button">Next Page</div> </div> <div class="footer"> copyright@2018 </div></div>

我也可以这样写

<body>
 <nav> <ul> <li>Home</li> <li>My Articles</li> </ul> </nav> <aside> <ul> <li>Like</li> <li>Share</li> <li>Add to favorite</li> </ul> </aside> <section> <h3>This is the heading</h3> <article> Lorem ipsum dolor sit, amet consectetur adipisicing elit. Quidem, assumenda? </article> <button>Next Page</button> </section> <footer> copyright@2018 </footer></body>

明显后者的SEO友好程度更高,搜索引擎也更容易将你的内容准确的展示出来。

为什么有些前端一直用div当按钮,而不是用button

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