一.浮动布局
1.先让固定宽度的div浮动!使其脱离文档流。
2.margin-left的值等于固定div的宽度相等。
.aside{ float: left; width: 200px; background-color: red; } .content{ margin-left: 200px; background-color: blue; } <div class="aside"> Lorem ipsum dolor sit amet, consectetur adipisicing elit. Labore provident dolor in voluptatum tempore non, placeat obcaecati totam ut delectus libero excepturi distinctio asperiores odit nobis soluta, esse aspernatur beatae.</div><div class="content"> Lorem ipsum dolor sit amet, consectetur adipisicing elit. Labore provident dolor in voluptatum tempore non, placeat obcaecati totam ut delectus libero excepturi distinctio asperiores odit nobis soluta, esse aspernatur beatae.</div>
二.margin的负值(3个div)
是固定宽度的div脱离文档流。利用marin负值可以使得,后面的div可以与前面的div 保持同行显示。给包裹内容的div加margin-left 可以使得与左边的文字不重叠.aside{ float: left; margin-right: -200px; width: 200px; background-color: red;}.content{ float: right;}.content .inner{ margin-left: 200px; background-color: blue;}<div class="aside">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Labore provident dolor in voluptatum tempore non, placeat obcaecati totam ut delectus libero excepturi distinctio asperiores odit nobis soluta, esse aspernatur beatae.</div><div class="content"><div class="inner">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Mollitia labore facere delectus quaerat expedita, tenetur recusandae tempora eos natus suscipit voluptatum necessitatibus soluta voluptates modi ullam. Ab minima similique, illum!</div></div>
三.calc()计算属性
注意:使用calc计算属性的时候 运算符(- +等等)两边必须有空格
注意两个div必须一左一右浮动。
calc的宽度必须要减去的宽度要与固定宽度保持一致。
.aside{float: left;width: 200px;}.content{float: right;calc:(100% - 200px);}<div class="aside"> Lorem ipsum dolor sit amet, consectetur adipisicing elit. Labore provident dolor in voluptatum tempore non, placeat obcaecati totam ut delectus libero excepturi distinctio asperiores odit nobis soluta, esse aspernatur beatae.</div><div class="content">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Labore provident dolor in voluptatum tempore non, placeat obcaecati totam ut delectus libero excepturi distinctio asperiores odit nobis soluta, esse aspernatur beatae.</div>
四.flex布局
需要给父级div设置display: flex属性。固定宽度的div设置flex: 0 0 200px即可。内容区域的div直接写出flex: 1即可。body{display: flex;}.aside{flex: 0 0 200px;background-color: red;}.content{flex: 1;background-color:blue;}<div class="aside">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Fugiat magnam nihil nostrum, similique dolor deserunt voluptatem pariatur alias, ipsum, error quos quo accusantium. Deleniti neque, pariatur voluptates maxime quam perferendis!</div><div class="content">Lorem ipsum dolor sit amet, consectetur adipisicing elit. Consectetur tempora sequi minima, placeat esse nulla dolor dolores praesentium illo, distinctio fugiat eligendi debitis animi ut impedit, magni vitae officiis, architecto.</div>
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