jquery实现移动端悬浮拖拽框_jquery

.main {
  position: relative;
  overflow: hidden;
  width: 100vw;
  height: 100vh;
  background: pink;
  padding: 1px;
  box-sizing: border-box;
}
.circle-box {
  position: absolute;
  top: 200px;
  bottom: 0;
/* 如果初始化设置right, 需先隐藏left, left级别大于right*/
  /* left: 0; */
  right: 1px;
  width: 40px;
  height: 40px;
  line-height: 40px;
  border-radius: 50%;
  background-color: transparent;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.3);
  z-index: 999;
}
.circle-box .circle {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.1);
  background-color: #fff;
  opacity: 0.5;

}