/* 公共的使用次数比较多的css代码 */

.left {
  float: left;
}
.right {
  float: right;
}
.back-fff{
  background: #fff;
}
.width-1070 {
  width: 1070px;
}
.margin-auto {
  margin: auto;
}

.display-block {
  display: inline-block;
}
.position-relative {
  position: relative;
}
.position-absolute {
  position: absolute;
}
.overflow-hidden{
  overflow: hidden;
}


.margin-left-transition {
  transition: all 0.6s;
}

.margin-left-start:hover {
  margin-right: 40px;
}

.lef-start:hover {
  right: 20px;
}