Wechat applet width 100% plus margin or padding overflows the screen

Solution 1: fill-available + margin

	width: 100%;
    width: -moz-available;
    width: -webkit-fill-available;
    width: fill-available;
    margin: 10rpx 20rpx;

Solution 2: box-sizing + padding

	width: 100%;
	padding: 10rpx 20rpx;
	-webkit-box-sizing: border-box;
	-moz-box-sizing: border-box;
	box-sizing: border-box;