/**
 * PostbirdAlertBox.js
 * -    原生javascript弹框插件
 * Author:  Postbird - http://www.ptbird.cn
 * License: MIT
 * Date:    2017-09-23
 */
*{margin:0;padding:0;box-sizing:border-box}.postbird-box-container{width:100%;height:100%;overflow:hidden;position:fixed;top:0;left:0;z-index:9999;background-color:rgba(0,0,0,0.2);display:block;-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}.postbird-box-container.active{display:block}.postbird-box-content{width:400px;max-width:90%;min-height:150px;background-color:#fff;border:solid 1px #dfdfdf;position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);margin-top:-100px}.postbird-box-header{width:100%;padding:10px 15px;position:relative;font-size:1.1em;letter-spacing:2px}.postbird-box-close-btn{cursor:pointer;font-weight:700;color:#000;float:right;opacity:.5;font-size:1.3em;margin-top:-3px;display:none}.postbird-box-close-btn:hover{opacity:1}.postbird-box-text{width:100%;padding:0 10%;text-align:center;line-height:40px;font-size:20px;letter-spacing:1px}.postbird-box-footer{width:100%;position:absolute;bottom:0;padding:0;margin:0;display:flex;display:-webkit-flex;justify-content:space-around;border-top:solid 1px #dfdfdf;align-items:flex-end}.postbird-box-footer .btn-footer{line-height:44px;border:0;cursor:pointer;background-color:#fff;color:#0e90d2;font-size:1.1em;letter-spacing:2px;transition:background-color .5s;-webkit-transition:background-color .5s;-o-transition:background-color .5s;-moz-transition:background-color .5s;outline:0}.postbird-box-footer .btn-footer:hover{background-color:#e5e5e5}.postbird-box-footer .btn-block-footer{width:100%}.postbird-box-footer .btn-left-footer,.postbird-box-footer .btn-right-footer{position:relative;width:100%}.postbird-box-footer .btn-left-footer::after{content:"";position:absolute;right:0;top:0;background-color:#e5e5e5;height:100%;width:1px}.postbird-box-footer .btn-footer-cancel{color:#333}.postbird-prompt-input{width:100%;padding:5px;font-size:16px;border:1px solid #ccc;outline:0}