a{text-decoration: none;color: #6c757d;}
a:link{text-decoration: none;}
a:visited{text-decoration: none;}
a:hover{text-decoration: none;color: #212529;}
a:active{text-decoration: none;}


.img-fluid{
    width: 100%;
    max-width: 100%;
    height: auto;
}


/* **************************************************************************************************** */
/* 顶部按钮 */
/* **************************************************************************************************** */
.btn-group.top-btn-group{
	position: fixed;
	z-index: 999;
	top: 10px;
	right: 10px;
}
.btn-group.top-btn-group .min-width-45{min-width: 45px;}
.btn-group.top-btn-group .min-width-70{min-width: 70px;}
.btn-group.top-btn-group .min-width-75{min-width: 75px;}
.btn-group.top-btn-group .min-width-80{min-width: 80px;}
.btn-group.top-btn-group .min-width-85{min-width: 85px;}
.btn-group.top-btn-group .min-width-90{min-width: 90px;}
.btn-group.top-btn-group .min-width-95{min-width: 95px;}
.btn-group.top-btn-group .min-width-100{min-width: 100px;}