将Clockdown.js自定义为仅显示分钟和秒

我在CodePen 上有这个模板

我真的试过把它自定义为只显示几分钟和几秒钟，但我做不到。

我缺少什么？

我的下一步是添加按钮来设置分钟、暂停和重置倒计时，我该怎么做？

提前感谢！

HTML:

<body>
<div class="countdown countdown-container container">
    <div class="clock row">
        <div class="clock-item clock-days countdown-time-value col-sm-6 col-md-3" id="days">
            <div class="wrap">
                <div class="inner">
                    <div id="canvas-days" class="clock-canvas"></div>
                    <div class="text">
                        <p class="val">0</p>
                        <p class="type-days type-time">DAYS</p>
                    </div>
                    <!-- /.text -->
                </div>
                <!-- /.inner -->
            </div>
            <!-- /.wrap -->
        </div>
        <!-- /.clock-item -->
        <div class="clock-item clock-hours countdown-time-value col-sm-6 col-md-3">
            <div class="wrap">
                <div class="inner">
                    <div id="canvas-hours" class="clock-canvas"></div>
                    <div class="text">
                        <p class="val">0</p>
                        <p class="type-hours type-time">HOURS</p>
                    </div>
                    <!-- /.text -->
                </div>
                <!-- /.inner -->
            </div>
            <!-- /.wrap -->
        </div>
        <!-- /.clock-item -->
        <div class="clock-item clock-minutes countdown-time-value col-sm-6 col-md-3">
            <div class="wrap">
                <div class="inner">
                    <div id="canvas-minutes" class="clock-canvas"></div>
                    <div class="text">
                        <p class="val">0</p>
                        <p class="type-minutes type-time">MINUTES</p>
                    </div>
                    <!-- /.text -->
                </div>
                <!-- /.inner -->
            </div>
            <!-- /.wrap -->
        </div>
        <!-- /.clock-item -->
        <div class="clock-item clock-seconds countdown-time-value col-sm-6 col-md-3">
            <div class="wrap">
                <div class="inner">
                    <div id="canvas-seconds" class="clock-canvas"></div>
                    <div class="text">
                        <p class="val">0</p>
                        <p class="type-seconds type-time">SECONDS</p>
                    </div>
                    <!-- /.text -->
                </div>
                <!-- /.inner -->
            </div>
            <!-- /.wrap -->
        </div>
        <!-- /.clock-item -->
    </div>
    <!-- /.clock -->
</div>
<!-- /.countdown-wrapper -->
</body>

CSS：

html, body {
    height: 100%;
}
html {
    background-image: url('http://i.imgur.com/E7djQGn.jpg');
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
}
body {
    background-color: rgba(44,62,80 , 0.6 );
    background-image: url('http://i.imgur.com/AOEi9ts.png');
    background-position: center;
    background-repeat: repeat;
    font-family: 'Raleway', 'Arial', sans-serif;
}
.countdown-container {
    position: relative;
    top: 50%;
    -webkit-transform: translateY(-50%);
    -moz-transform: translateY(-50%);
    transform: translateY(-50%);
}
.clock-item .inner {
    height: 0px;
    padding-bottom: 100%;
    position: relative;
    width: 100%;
}
.clock-canvas {
    background-color: rgba(255, 255, 255, .1);
    border-radius: 50%;
    height: 0px;
    padding-bottom: 100%;
}
.text {
    color: #fff;
    font-size: 30px;
    font-weight: bold;
    margin-top: -50px;
    position: absolute;
    top: 50%;
    text-align: center;
    text-shadow: 1px 1px 1px rgba(0, 0, 0, 1);
    width: 100%;
}
.text .val {
    font-size: 50px;
}
.text .type-time {
    font-size: 20px;
}
@media (min-width: 768px) and (max-width: 991px) {
    .clock-item {
        margin-bottom: 30px;
    }
}
@media (max-width: 767px) {
    .clock-item {
        margin: 0px 30px 30px 30px;
    }
}

JS:

var today = new Date();
    // My target date is this month 30th 9.25pm
    var target = new Date(today);
    //target.setDate(2);
    target.setHours(21,25,0,0);
    // Countdown start from yesterday
    var yesterday = new Date(today);
    yesterday.setDate(today.getDate() - 1);
    yesterday.setHours(0,0,0,0);
    $('.countdown').final_countdown({
        'start': yesterday.getTime() / 1000,
        'end': target.getTime() / 1000,
        'now': today.getTime() / 1000,
        seconds: {
            borderColor: '#8ef58e',
            borderWidth: '0.5'
        },
        minutes: {
            borderColor: '#ff8d72',
            borderWidth: '0.5'
        },
        hours: {
            borderColor: '#69ccff',
            borderWidth: '0.5'
        },
        days: {
            borderColor: '#ffd35c',
            borderWidth: '0.5'
        }
    });

只需为不想display:none; 的零件设置类

div.clock-hours { display:none; }
div.clock-days { display:none; }

只需删除html中的以下两个部分就可以了：

<div class="clock-item clock-days countdown-time-value col-sm-6 col-md-3" id="days">
        <div class="wrap">
            <div class="inner">
                <div id="canvas-days" class="clock-canvas"></div>
                <div class="text">
                    <p class="val">0</p>
                    <p class="type-days type-time">DAYS</p>
                </div>
                <!-- /.text -->
            </div>
            <!-- /.inner -->
        </div>
        <!-- /.wrap -->
    </div>
    <!-- /.clock-item -->
    <div class="clock-item clock-hours countdown-time-value col-sm-6 col-md-3">
        <div class="wrap">
            <div class="inner">
                <div id="canvas-hours" class="clock-canvas"></div>
                <div class="text">
                    <p class="val">0</p>
                    <p class="type-hours type-time">HOURS</p>
                </div>
                <!-- /.text -->
            </div>
            <!-- /.inner -->
        </div>
        <!-- /.wrap -->
    </div>
    <!-- /.clock-item -->

在小时div 中添加id="hours"后，这对我起到了作用

#days { display:none }
#hours { display:none }

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