tino-mp-master/components/float-btn/float-btn.scss

@mixin notSelect {
  -moz-user-select: none; /*火狐*/
  -webkit-user-select: none; /*webkit浏览器*/
  -ms-user-select: none; /*IE10*/
  -khtml-user-select: none; /*早期浏览器*/
  user-select: none;
}
@mixin not-touch {
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
}
.floatBtn {
  @include notSelect;
  @include not-touch();
  position: absolute;
  //  z-index: 9999;
  overflow: visible;
  width: 160rpx;
  height: 76rpx;
  right: 0;
  // left: calc(100% - 196px);
  // top: calc(100% - 180px);
  color: #f5fef9;
  background: #239ad8;
  font-size: 28rpx;
  line-height: 76rpx;
  text-align: right;
  box-sizing: border-box;
  // padding: 10px;
  &.rightBtn {
    border-radius: 21rpx;
  }
  &.leftBtn {
    border-radius: 21rpx;
  }
  &.moveBtn {
    border-radius: 21rpx;
  }
}
@keyframes lightning-anim {
  0% {
    opacity: 0;
  }
  5% {
    opacity: 1;
  }
  10% {
    opacity: 0;
  }
  15% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}
.lighting {
  position: absolute;
  top: 43%;
  left: 30rpx;
  font-size: 10rpx;
  transform: skewX(-10deg);
  animation: lightning-anim 2s linear infinite;
}
.lighting::before {
  content: "";
  position: absolute;
  margin-top: -20rpx;
  margin-left: -10rpx;
  border-top: 15rpx solid transparent;
  border-right: 10rpx solid #f7f5ff;
  border-bottom: 15rpx solid #f7f5ff;
  border-left: 10rpx solid transparent;
}
.lighting::after {
  content: "";
  position: absolute;
  margin-left: 6rpx;
  border-top: 15rpx solid #f7f5ff;
  border-right: 10rpx solid transparent;
  border-bottom: 15rpx solid transparent;
  border-left: 10rpx solid #f7f5ff;
}