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>

以上就是本文的全部内容，希望对大家的学习有所帮助