body {
	background-color: white;
	padding-bottom: 50px;
}

#content,
#calc {
	padding: 20px;
	background-color: #F2F2F2;
}

.div {
	border: 1px solid red;
}

#btm {
	left: 0;
	bottom: 0;
	width: 100%;
	height: 50px;
	line-height: 50px;
	background-color: #F2F2F2;
	position: fixed;
	text-align: center;
}

#btm a {
	color: #009688;
	cursor: pointer;
}

.cell {
	height: 100px;
	line-height: 100px;
	cursor: pointer;
	overflow: hidden;
	display: flex;
	justify-content: left;
}

.cell img {
	padding: 0 20px;
}

.cell .title {
	font-size: 20px;
	font-family: 微软雅黑;
	color: #009688;
}