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HTML 

              
                <div class="alarm-wrap">
<div class="alarm">
	<div class="top clearfix">
		<div class="action pull-right">
			<a href="#" class="mini"><span></span></a>
			<a href="#" class="maxi"><span></span></a>
			<a href="#" class="exit"><span></span></a>
		</div>
	</div>
	<div class="slide-date">
		<div class="alarm-prev"><span></span></div>
		<div class="date">
			<div class="dd">18</div>
			<div class="mm-yy">July 2015</div>
		</div>
		<div class="alarm-next"><span></span></div>
	</div>
	<div class="day">Monday</div>
	<input id="main-toggle" type="checkbox" class="tgl"><label for="main-toggle" class="toggle"></label>
	<div class="alarm-content">
		<div class="calendar-wrap">
			<div class="calendar">
			<div class="calendar-day">
				<input class="tgl-dd" id="tgl-day-1" type="checkbox" checked><label class="tgl-day" for="tgl-day-1">SU</label>
				<input class="tgl-dd" id="tgl-day-2" type="checkbox" checked><label class="tgl-day" for="tgl-day-2">MO</label>
				<input class="tgl-dd" id="tgl-day-3" type="checkbox"><label class="tgl-day" for="tgl-day-3">TU</label>
				<input class="tgl-dd" id="tgl-day-4" type="checkbox" checked><label class="tgl-day" for="tgl-day-4">WE</label>
				<input class="tgl-dd" id="tgl-day-5" type="checkbox"><label class="tgl-day" for="tgl-day-5">TH</label>
				<input class="tgl-dd" id="tgl-day-6" type="checkbox"><label class="tgl-day" for="tgl-day-6">FR</label>
				<input class="tgl-dd" id="tgl-day-7" type="checkbox"><label class="tgl-day" for="tgl-day-7">SA</label>
			</div>
			<div class="calendar-time">
				<div class="time-hh">
					<div class="text">H</div>
					<select>
						<option>01</option>
						<option>02</option>
						<option>03</option>
						<option>04</option>
						<option>05</option>
						<option>06</option>
						<option>07</option>
						<option>08</option>
						<option>09</option>
						<option>10</option>
						<option>11</option>
						<option>12</option>
					</select>
				</div>
				<div class="time-mm">
					<div class="text">M</div>
					<select>
						<option>10</option>
						<option>20</option>
						<option selected>30</option>
						<option>40</option>
						<option>50</option>
						<option>60</option>
					</select>
				</div>
				<div class="time-ss">
					<div class="text">S</div>
					<select>
						<option>00</option>
						<option>10</option>
						<option>20</option>
						<option>30</option>
						<option>40</option>
						<option>50</option>
						<option>60</option>
					</select>
				</div>
			</div>
			<div class="calendar-action clearfix">
				<div class="button"><button class="btn btn-default pull-left">Begin</button></div>
				<div class="button"><label for="main-toggle" class="btn btn-danger pull-right">Cancel</label></div>
			</div>
			</div>
		</div>
		<div class="alarm-ul">
			<div class="alarm-li">
			<input id="alarm-1" type="checkbox" class="on-off" checked>
			<div class="alarm-list-inf clearfix">
				<div class="pull-left">
					<span class="alarm-bell"></span>
				</div>
				<div class="pull-left">
					<div class="alarm-info">
						<div class="alarm-time">06:30</div>
						<div class="alarm-repeat">
							<span class="active">SU</span>
							<span>MO</span>
							<span class="active">TU</span>
							<span class="active">WE</span>
							<span>TH</span>
							<span class="active">FR</span>
							<span class="active">SA</span>
						</div>
					</div>
				</div>
				<div class="pull-right">
					<label class="alarm-toggle" for="alarm-1"></label>
				</div>
			</div>
			</div>
			<div class="alarm-li">
			<input id="alarm-2" type="checkbox" class="on-off">
			<div class="alarm-list-inf clearfix">
				<div class="pull-left">
					<span class="alarm-bell"></span>
				</div>
				<div class="pull-left">
					<div class="alarm-info">
						<div class="alarm-time">09:30</div>
						<div class="alarm-repeat">
							<span>SU</span>
							<span>MO</span>
							<span>TU</span>
							<span class="active">WE</span>
							<span>TH</span>
							<span>FR</span>
							<span>SA</span>
						</div>
					</div>
				</div>
				<div class="pull-right">
					<label class="alarm-toggle" for="alarm-2"></label>
				</div>
			</div>
			</div>
			<div class="alarm-li">
			<input id="alarm-3" type="checkbox" class="on-off" checked>
			<div class="alarm-list-inf clearfix">
				<div class="pull-left">
					<span class="alarm-bell"></span>
				</div>
				<div class="pull-left">
					<div class="alarm-info">
						<div class="alarm-time">15:30</div>
						<div class="alarm-repeat">
							<span class="active">SU</span>
							<span>MO</span>
							<span>TU</span>
							<span>WE</span>
							<span>TH</span>
							<span>FR</span>
							<span>SA</span>
						</div>
					</div>
				</div>
				<div class="pull-right">
					<label class="alarm-toggle" for="alarm-3"></label>
				</div>
			</div>
			</div>
		</div>
	</div>
</div>
</div>
!

CSS 

              
                body{
	margin:0;
	color:#444;
	background:#5cffbd;
	font:300 18px/18px Roboto, sans-serif;
}
*,:after,:before{box-sizing:border-box}
.pull-left{float:left}
.pull-right{float:right}
.clearfix:after,.clearfix:before{content:'';display:table}
.clearfix:after{clear:both;display:block}

.alarm{
	width:310px;
	margin:5% auto 0;
	position:relative;
	background:#f5feff;
  box-shadow:0 8px 17px 0 rgba(0,0,0,.2),0 6px 20px 0 rgba(0,0,0,.19);
}
.alarm a{
	color:inherit;
	text-decoration:none;
}
.alarm .top{
	height:30px;
	background:#0096a6;
}
.alarm .top .action .mini,
.alarm .top .action .maxi,
.alarm .top .action .exit,
.alarm .top .action span{
	padding:2px 5px;
	display:inline-block;
}
.alarm .top .action span{
	padding:0;
}
.alarm .top .action .mini span{
	width:10px;
	height:2px;
	background:#45b4c0;
}
.alarm .top .action .maxi span{
	width:12px;
	height:10px;
	border:2px solid #45b4c0;
}
.alarm .top .action .exit span{
	width:12px;
	height:12px;
	position:relative;
}
.alarm .top .action .exit span:before,
.alarm .top .action .exit span:after{
	top:50%;
	content:'';
	height:2px;
	width:inherit;
	position:absolute;
	background:#45b4c0;
}
.alarm .top .action .exit span:before{
	right:0;
	transform:rotate(45deg);
}
.alarm .top .action .exit span:after{
	right:0;
	transform:rotate(-45deg);
}

.alarm .slide-date{
	min-height:165px;
	position:relative;
	background:#00bcd4;
}
.alarm .slide-date .alarm-prev,
.alarm .slide-date .alarm-next{
	top:50%;
	position:absolute;
}
.alarm .slide-date .alarm-prev{
	left:20px;
}
.alarm .slide-date .alarm-next{
	right:20px;
}
.alarm .slide-date .alarm-prev span,
.alarm .slide-date .alarm-next span{
	height:2px;
	width:15px;
	display:block;
	background:#f5feff;
	position:relative;
}
.alarm .slide-date .alarm-prev span:before,
.alarm .slide-date .alarm-prev span:after,
.alarm .slide-date .alarm-next span:before,
.alarm .slide-date .alarm-next span:after{
	content:'';
	width:10px;
	height:inherit;
	position:absolute;
	background:inherit;
}
.alarm .slide-date .alarm-prev span:before{
	top:3px;
	left:-2px;
	-webkit-transform:rotate(45deg);
	transform:rotate(45deg);
}
.alarm .slide-date .alarm-prev span:after{
	left:-2px;
	bottom:3px;
	-webkit-transform:rotate(-45deg);
	transform:rotate(-45deg);
}
.alarm .slide-date .alarm-next span:before{
	top:3px;
	right:-2px;
	-webkit-transform:rotate(130deg);
	transform:rotate(130deg);
}
.alarm .slide-date .alarm-next span:after{
	right:-2px;
	bottom:3px;
	-webkit-transform:rotate(-130deg);
	transform:rotate(-130deg);
}
.alarm .slide-date .date{
	text-align:center;
}
.alarm .slide-date .date .dd{
	color:#f5feff;
	font-size:72px;
	font-weight:100;
	padding-top:35px;
	line-height:72px;
}
.alarm .slide-date .date .mm-yy{
	color:#007c8d;
	font-weight:400;
	padding-top:10px;
}
.alarm .day{
	color:#f5feff;
	font-size:11px;
	font-weight:400;
	line-height:11px;
	background:#616161;
	padding:10px 20px;
	text-transform:uppercase;
	box-shadow:0 2px 4px -1px rgba(0,0,0,.4) inset;
}

.alarm .alarm-content{
	padding:15px;
	overflow:hidden;
	position:relative;
}
.alarm .alarm-ul .alarm-li{
	z-index:0;
	display:block;
	padding:15px 0;
	overflow:hidden;
	position:relative;
}
.alarm .alarm-ul .alarm-li .on-off{
	display:none;
}
.alarm .alarm-ul .alarm-li:not(:last-child):after{
	bottom:0;
	left:45px;
	height:1px;
	content:'';
	position:absolute;
	background:#d0cfcf;
}
.alarm .alarm-bell{
	width:10px;
	height:10px;
	display:block;
	margin-left:5px;
	position:relative;
	background:#d0cfcf;
	border-radius:5px 5px 0 0;
}
.alarm .alarm-bell:before,
.alarm .alarm-bell:after{
	content:'';
	position:absolute;
}
.alarm .alarm-bell:before{
	top:50%;
	left:50%;
	width:4px;
	height:15px;
	margin-top:-7px;
	margin-left:-2px;
	border-radius:3px;
	background:inherit;
}
.alarm .alarm-bell:after{
	height:0;
	left:-2px;
	width:14px;
	bottom:-1px;
	border:5px solid transparent;
	border-bottom:5px solid #d0cfcf;
}
.alarm .alarm-info{
	margin-left:20px;
}
.alarm .alarm-info .alarm-time{
	color:#d0cfcf;
	font-size:34px;
}
.alarm .alarm-info .alarm-repeat span{
	color:#d0cfcf;
	font-size:10px;
	font-weight:600;
}

.alarm .alarm-ul{
	-webkit-animation:swipeIn .4s;
	animation:swipeIn .4s;
}
.alarm .alarm-ul .alarm-li .alarm-toggle{
	width:30px;
	height:20px;
	display:block;
	position:relative;
}
.alarm .alarm-ul .alarm-li .alarm-toggle:before,
.alarm .alarm-ul .alarm-li .alarm-toggle:after{
	top:50%;
	content:'';
	position:absolute;
	transition:all .3s ease-in-out 0s;
}
.alarm .alarm-ul .alarm-li .alarm-toggle:before{
	left:0;
	z-index:1;
	width:15px;
	height:15px;
	margin-top:-7.5px;
	border-radius:50%;
	background:#f5feff;
	border:2px solid #7e8182;
}
.alarm .alarm-ul .alarm-li .alarm-toggle:after{
	width:30px;
	height:2px;
	display:block;
	border-radius:1px;
	background:#d0cfcf;
}

.alarm .alarm-ul .alarm-li .on-off:checked + .alarm-list-inf .alarm-bell{
	background:#2096f4;
}
.alarm .alarm-ul .alarm-li .on-off:checked + .alarm-list-inf .alarm-bell:after{
	border-bottom-color:#2096f4;
}
.alarm .alarm-ul .alarm-li .on-off:checked + .alarm-list-inf .alarm-time{
	color:#acb3b4;
}
.alarm .alarm-ul .alarm-li .on-off:checked + .alarm-list-inf .alarm-repeat span.active{
	color:#2096f4;
}
.alarm .alarm-ul .alarm-li .on-off:checked + .alarm-list-inf .alarm-toggle:before{
	left:15px;
	background:#2096f4;
	border-color:#2096f4;
}
.alarm .alarm-ul .alarm-li .on-off:checked + .alarm-list-inf .alarm-toggle:after{
	background:#2096f4;
}
.alarm .alarm-content .calendar{
	top:0;
	left:0;
	right:0;
	bottom:0;
	z-index:99;
	padding:15px;
	position:absolute;

	top:80px;
	left:45px;
	right:45px;
	bottom:80px;
}
.alarm .alarm-content .calendar .calendar-day{
	width:100%;
	display:table;
}
.alarm .alarm-content .calendar .calendar-day .tgl-dd{
	display:none;
}
.alarm .alarm-content .calendar .calendar-day .tgl-day{
	width:1%;
	color:#ccbf43;
	font-size:16px;
	font-weight:400;
	text-align:center;
	display:table-cell;
}
.alarm .alarm-content .calendar .calendar-day .tgl-dd:checked + .tgl-day{
	color:inherit;
}
.alarm .alarm-content .calendar .calendar-time{
	width:100%;
	display:table;
	margin-top:30px;
}
.alarm .alarm-content .calendar .calendar-time>div{
	width:1%;
	text-align:center;
	display:table-cell;
}
.alarm .alarm-content .calendar .calendar-time .text{
	font-weight:400;
	margin-bottom:5px;
}
.alarm .alarm-content .calendar .calendar-time select,
.alarm .alarm-content .calendar .calendar-action .btn{
	width:80%;
	color:#444;
	font-size:18px;
	font-weight:400;
	background:#fff;
	text-align:center;
	border-radius:2px;
	border:1px solid #ccc;
	box-shadow:0 1px 4px rgba(0,0,0,.4);
}
.alarm .alarm-content .calendar .calendar-time select{
	padding:8px;
}
.alarm .alarm-content .calendar .calendar-action{
	width:100%;
	display:table;
	margin-top:50px;
}
.alarm .alarm-content .calendar .calendar-action .button{
	min-width:1%;
	display:table-cell;
}
.alarm .alarm-content .calendar .calendar-action .btn{
	border-radius:0;
	padding:10px 15px;
}
.alarm .alarm-content .calendar .calendar-action .btn.btn-danger{
	color:#eee;
	background:#ff5151;
	border-color:transparent;
}

.alarm .tgl{
	display:none;
}
.alarm .toggle{
	z-index:99;
	top:170px;
	right:15px;
	width:45px;
	height:45px;
	display:block;
	position:absolute;
	border-radius:50%;
	background:#ffee4d;
	box-shadow:0 3px 2px rgba(0,0,0,.4);
	transition:all .4s ease-in-out 0s;
}
.alarm .toggle:before,
.alarm .toggle:after{
	top:50%;
	left:50%;
	content:'';
	width:12px;
	height:2px;
	background:#444;
	margin-top:-2px;
	margin-left:-6px;
	position:absolute;
}
.alarm .toggle:before{
	transform:rotate(90deg);
}

.alarm .alarm-content .calendar-wrap{
	top:50%;
	left:50%;
	z-index:1;
	width:400px;
	height:400px;
	overflow:hidden;
	border-radius:50%;
	position:absolute;
	margin-top:-200px;
	margin-left:-200px;
	background:#ffee4d;
	-webkit-transform:translate(117px,-154px) scale(0);
	transform:translate(117px,-154px) scale(0);
	transition:all .4s ease-in-out 0s;
}
.alarm .tgl:checked + .toggle + .alarm-content .alarm-ul{
	-webkit-animation:swipeOut .3s;
	animation:swipeOut .3s;
}
.alarm .tgl:checked + .toggle{
	transform:translate(-80px,100px) scale(0);
}
.alarm .tgl:checked + .toggle + .alarm-content .calendar-wrap{
	-webkit-transform:translate(0) scale(1);
	transform:translate(0) scale(1);
}
@-webkit-keyframes swipeIn{
	0%{
		opacity:0;
		visibility:hidden;
		-webkit-transform:translate3d(-100%,0,0);
		transform: translate3d(-100%,0,0);
	}
	100%{
		-webkit-transform:translate3d(0,0,0);
		transform:translate3d(0,0,0);
		
  }
}
@keyframes swipeIn{
	0%{
		opacity:0;
		visibility:hidden;
		transform:translate3d(-100%,0,0);
	}
	100%{
		transform:translate3d(0,0,0);
	}
}
@-webkit-keyframes swipeOut{
	0%{
		-webkit-transform:translate3d(0,0,0);
		transform:translate3d(0,0,0);
	}
	100%{
		opacity:0;
		visibility:hidden;
		-webkit-transform:translate3d(-100%,0,0);
		transform: translate3d(-100%,0,0);
  }
}
@keyframes swipeOut{
	0%{
		transform:translate3d(0,0,0);
	}
	100%{
		opacity:0;
		visibility:hidden;
		transform:translate3d(-100%,0,0);
	}
}
!

JS
!
999px

Console