详解CSS常用操作对齐方法

*{
 margin: 0px;
}
.div{
 width: 70%;
 height: 1000px;
 background-color: red;
 margin-left: auto;
 margin-right: auto;
}

*{
 margin: 0px;
}
.div{
 width: 70%;
 height: 1000px;
 background-color: red;
 margin: 100px auto;
}

*{
 margin: 0px;
}
.div{
 width: 70%;
 height: 1000px;
 background-color: red;
 position: absolute;
 right: 0px;
}

*{
 margin: 0px;
}
.div{
 width: 70%;
 height: 1000px;
 background-color: red;
 float: left;
}