.my_alert-wrapper{
  position: fixed;
  top: 10%;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000001;
}
.my_alert-wrapper .my_alertBox{
	  width: 500px;
    padding: 14px 16px;
    box-sizing: border-box;
    border-radius: 4px;
    background-color: #fff;
    overflow: hidden;
    opacity: 1;
    display: flex;
    margin: 20px auto;
    -webkit-animation-name: slideDownUp; /*动画名称*/
    -webkit-animation-duration: 1s; /*动画持续时间*/
    -webkit-animation-iteration-count: 1; /*动画次数*/
    -webkit-animation-delay: 0s; /*延迟时间*/
}
@media only screen and (max-width: 800px) {
  .my_alertBox{
    width: 300px;
    left: calc(50% - 150px);
  }
}
.my_alertBox--error {
  background-color: rgb(255,241,240);
  color: #f56c6c;
  border: 2px solid rgb(255,163,158);
}

.my_alertBox--info {
  background-color: rgb(230,247,255);
  color: #909399;
  border: 2px solid rgb(145,213,255);
}

.my_alertBox--success {
  background-color: rgb(246,255,237);
  color: #67c23a;
  border: 2px solid rgb(183,235,143);
}

.my_alertBox--warning {
  background-color: rgb(255,251,230);
  color: #e6a23c;
  border: 2px solid rgb(255,229,143);
}

.my_alert-icon {
  font-size: 16px;
  width: 16px;
}

.my_alert-content {
  flex: 1;
  padding: 0 8px;
  font-size: 13px;
  line-height: 18px;
  word-break: break-all;
}

.my_alert-closebtn {
  font-size: 16px;
  color: #c0c4cc;
  opacity: 1;
  width: 20px;
  /*position: absolute;*/
  /*top: 16px;*/
  /*right: 15px;*/
  cursor: pointer;
}

@-webkit-keyframes slideDownUp {
  from {-webkit-transform: translateY(-100%);}
  to {-webkit-transform: translateY(0);}
}

.main-box{
        position: absolute;
        left: 50%;
        top: 50%;
        transform: translate(-50%,-50%);
      }
      .alert-btn {
        display: inline-block;
        font-weight: normal;
        text-align: center;
        vertical-align: middle;
        touch-action: manipulation;
        cursor: pointer;
        background-image: none;
        border: 1px solid transparent;
        white-space: nowrap;
        padding: 6px 20px;
        font-size: 14px;
        line-height: 1.42857143;
        border-radius: 4px;
        -webkit-user-select: none;
        -moz-user-select: none;
        -ms-user-select: none;
        user-select: none;
        color: #ffffff;
        margin: 0 20px;
      }