#toglleButton{
	margin: 10px;
}
#box{
	/*自适应字体的宽度*/
	width:fit-content;
	box-sizing: border-box;
	padding: 5px 0;
	position: relative;
}
.memu{
	/*底部的蓝条 用border-bottom来制作 scaleX来缩放*/
	position: absolute;
	top: 0;
	left: 0;
	border-width: 0px;
	border-color:blue;
	border-style:solid;
	width:100%;
	height: 100%;
	transform: scaleX(0);
	transition: all 1s ease;
}
.toggle{
	transform: scaleX(1);
	border-bottom-width:2px; 
}
.fontColor{
	color:blue;
}