flexbox
使用flexbox时，它是一个声明：
.row { display: flex; }.col { flex: 1; padding: 1em; border: solid;}<div > <div >Lorem ipsum dolor sit amet, consectetur adipisicing elit.</div> <div >Lorem ipsum dolor sit amet, consectetur adipisicing elit. Ad omnis quae expedita ipsum nobis praesentium velit animi minus amet perspiciatis laboriosam similique debitis iste ratione nemo ea at corporis aliquam.</div></div>
