:root {
  --min-page-width: 800px;
  --content-width-percentage: 90%;
  --content-width-max: 1195px;
  --content-padding-bottom: 105px;
}

body * {
	box-sizing:border-box;
	flex-shrink:0;
}
body {
	font-family:PingFangSC-Regular,Roboto,Helvetica Neue,Helvetica,Tahoma,Arial,PingFang SC-Light,Microsoft YaHei;
}
input {
	background-color:transparent;
	border:0;
}
button {
	margin:0;
	padding:0;
	border:1px solid transparent;
	outline:none;
	background-color:transparent;
}
button:active {
	opacity:0.6;
}
.flex-col-center {
	display:flex;
	flex-direction:column;
	align-items:center;
	justify-content:center;
}	
.flex-col {
	display:flex;
	flex-direction:column;
}
.flex-row {
	display:flex;
	flex-direction:row;
}
.justify-start {
	display:flex;
	justify-content:flex-start;
}
.justify-center {
	display:flex;
	justify-content:center;
}
.justify-end {
	display:flex;
	justify-content:flex-end;
}
.justify-evenly {
	display:flex;
	justify-content:space-evenly;
}
.justify-around {
	display:flex;
	justify-content:space-around;
}
.justify-between {
	display:flex;
	justify-content:space-between;
}
.align-start {
	display:flex;
	align-items:flex-start;
}
.align-center {
	display:flex;
	align-items:center;
}
.align-end {
	display:flex;
	align-items:flex-end;
}