SOURCE

var _showToast = function(text, duration) {
  $poptoast = $('.pop-toast');
  if ($poptoast.length == 0) {
    var $poptoast = $("<div class='pop-toast'><div class='pop-toast-cnt'><div class='pop-toast-icon'></div><div class='pop-toast-text'></div></div></div>");
    $('body').prepend($poptoast);
  }
  if ($poptoast.css('display') == 'flex') return;
  $poptoast.css('display', 'flex').find('.pop-toast-text').text(text || '已完成');
  setTimeout(function() {
    $('.pop-toast').css('display', 'none');
  }, duration || 1000);
}

$.extend(true, $, {
  showToast: _showToast
});

$.showToast('已完成', 1000);

html,
body {
  margin: 0;
  padding: 0;
}

.pop-toast {
  display: none;
  position: fixed;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  z-index: 99999;
  justify-content: center;
  align-items: center;
}
.pop-toast-icon {
  position: relative;
  width: 100%;
  font-family: 'weui';
  line-height: 1;
  font-size: 55px;
  margin-top: 22px;
}

.pop-toast-icon:before {
  content: '\EA08';
  display: inline-block;
  color: #09BB07;
}

.pop-toast-cnt {
  width: 120px;
  min-height: 120px;
  background: rgba(17, 17, 17, .7);
  box-shadow: 0 0 6px 0 rgba(0, 0, 0, .2);
  border-radius: 5px;
  color: #fff;
  text-align: center;
}

@font-face {
    font-weight: normal;
    font-style: normal;
    font-family: "weui";
    src: 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') format('truetype');
}

.weui-icon-circle:before { content: "\EA01" } /* '' */
.weui-icon-download:before { content: "\EA02" } /* '' */
.weui-icon-info:before { content: "\EA03" } /* '' */
.weui-icon-safe-success:before { content: "\EA04" } /* '' */
.weui-icon-safe-warn:before { content: "\EA05" } /* '' */
.weui-icon-success:before { content: "\EA06" } /* '' */
.weui-icon-success-circle:before { content: "\EA07" } /* '' */
.weui-icon-success-no-circle:before { content: "\EA08" } /* '' */
.weui-icon-waiting:before { content: "\EA09" } /* '' */
.weui-icon-waiting-circle:before { content: "\EA0A" } /* '' */
.weui-icon-warn:before { content: "\EA0B" } /* '' */
.weui-icon-info-circle:before { content: "\EA0C" } /* '' */
.weui-icon-cancel:before { content: "\EA0D" } /* '' */
.weui-icon-search:before { content: "\EA0E" } /* '' */
.weui-icon-clear:before { content: "\EA0F" } /* '' */
.weui-icon-back:before { content: "\EA10" } /* '' */
.weui-icon-delete:before { content: "\EA11" } /* '' */