插件：弹窗

以前自己写过的一个简单弹窗插件，简洁好用，不复杂；PC、移动端都能用

 调用代码：

new upBox().show({ // 显示弹窗
    title: '测试弹窗',
     '80%',
    height: 300,
    content: '<button id="test2">隐藏</button>',
    // maskLayerHide: false // true/false
})


new upBox().hide() // 隐藏弹窗

插件JS源码：

(function () {
    function upBox() {
    };

    upBox.prototype.show = function(option) { // 显示弹窗
        var _this = this;
        option = option ? option : {}
        option.width = option.width ? option.width : 400
        option.height = option.height ? option.height : 300
        option.title = option.title ? option.title : "标题"
        option.content = option.content ? option.content : "" // 内容
        option.maskLayerHide = (option.maskLayerHide == undefined) ? true : option.maskLayerHide // 是否点击遮罩层隐藏弹窗
        var upBoxID = (Math.random() * 10000000).toString(16).substr(0, 4) + (new Date()).getTime() + Math.random().toString().substr(2, 5);
        
        if (String(option.width).indexOf("%")<0) {
            option.width += 'px'
        }
        if (String(option.height).indexOf("%")<0) {
            option.height += 'px'
        }

        // 渲染弹窗结构
        var body = document.getElementsByTagName("body")[0];
        body.insertAdjacentHTML("beforeEnd", `
            <div id="upBox_${upBoxID}" class="upBox">
                <div class="upBox_container" style=" ${option.width};height: ${option.height}">
                    <div class="upBox_container_head">
                        <div class="upBox_container_head_title">${option.title}</div>
                        <div id="upBox_CancelBtn_${upBoxID}" class="upBox_container_head_cancelBtn">X</div>
                    </div>
                    <div class="upBox_container_body">${option.content}</div>
                </div>
            </div>
        `);

        var thisUpBox = document.getElementById("upBox_" + upBoxID);
        
        setTimeout(function() { // 显示弹窗，定时器延时是为了触发动画
            thisUpBox.classList.add("upBoxShow");
        }, 100);

        // 点击隐藏按钮隐藏弹窗
        document.getElementById("upBox_CancelBtn_" + upBoxID).addEventListener('click', function () {
            _this.hide()
        }, false);

        thisUpBox.addEventListener('click', function (e) { // 点击遮罩层隐藏弹窗
            if(e.target == this && option.maskLayerHide){
                _this.hide()
            }
        }, false);
    }

    upBox.prototype.hide = function() { // 隐藏弹窗
        var body = document.getElementsByTagName("body")[0];
        var upBox = document.getElementsByClassName('upBox')[0]
        upBox.classList.remove("upBoxShow");
        setTimeout(function() {
            body.removeChild(upBox);
        }, 600);
    }

    window.upBox = upBox
})()

插件CSS源码：

.upBox{
     100%;
    height: 100%;
    opacity: 0;
    position: fixed;
    top: 0;
    left: 0;
    z-index: 99;
    background: rgba(0, 0, 0, 0.6);
    font-family:"微软雅黑";
    box-sizing:border-box;
    transition: 0.5s;
    -ms-transition: 0.5s;
    -moz-transition: 0.5s;
    -webkit-transition: 0.5s;
    -o-transition: 0.5s;
    display: flex;
    display: -ms-flex;
    display: -moz-flex;
    display: -webkit-flex;
    display: -o-flex;
    flex-direction: row;
    -ms-flex-direction: row;
    -moz-flex-direction: row;
    -webkit-flex-direction: row;
    -o-flex-direction: row;
    justify-content: center;
    -ms-justify-content: center;
    -moz-justify-content: center;
    -webkit-justify-content: center;
    -o-justify-content: center;
    align-items: center;
    -ms-align-items: center;
    -moz-align-items: center;
    -webkit-align-items: center;
    -o-align-items: center;
}
.upBoxShow{
    opacity: 1;
}
.upBox_container{
    border-radius: 5px;
    background: white;
}
.upBox_container_head{
     100%;
    height: 35px;
    padding: 5px;
    line-height: 23px;
    box-sizing:border-box;
    border-bottom: 1px solid black;
}
.upBox_container_head:after{ /* 清除浮动 */
    content: "020"; 
    display: block; 
    height: 0; 
    clear: both; 
    visibility: hidden;  
}
.upBox_container_head{
    zoom:1
}
.upBox_container_head_title{
     calc(100% - 25px);
    height: 100%;
    float: left;
    overflow: hidden;  
    text-overflow: ellipsis;  
    white-space: nowrap;
}
.upBox_container_head_cancelBtn{
     25px;
    height: 100%;
    text-align: center;
    float: left;
    cursor:pointer;
}
.upBox_container_body{
     100%;
    height: calc(100% - 35px);
}

完整的调用例子截个图：