#nav {
   position: fixed;
   bottom: 0;
   height: 75px;
   z-index: 50;
   background: #fff;
   box-shadow: 0px -5px 20px rgba(0, 0, 0, 0.05);
   border-radius: 20px 20px 0px 0px;
}

#nav ul {
   list-style: none;
   padding-left: 0px;
   cursor: pointer;
}

#nav ul:after {
   display: block;
   visibility: hidden;
   clear: both;
   content: "";
}

#nav .nav_li {
   float: left;
   width: 20%;
   padding: 10px 0 5px;
   text-align: center;
}

#nav .nav_li i {
   font-size: 18px;
   height: 20px;
   color: #fff;
}

#nav .nav_li button {
   border: 0;
   background: none;
   color: #fff;
}

#nav .nav_li .txt {
   display: block;
   line-height: 20px;
   font-size: 11px;
   color: #fff;
}

/* #nav .nav_li img:hover {
    background: #FFF;
    opacity: 0.3;
    border-radius: 15px;
    cursor: pointer;
} */

#item_nav {
   position: fixed;
   /* bottom: 65px !important; */
   bottom: 0px !important;
   height: 85px;
   z-index: 49;
   background: #ffffffed;
   box-shadow: 0px -5px 20px rgba(0, 0, 0, 0.05);
   border-radius: 20px 20px 0px 0px;
}

#item_nav ul {
   list-style: none;
   padding-left: 0px;
   display: flex;
   justify-content: center;
}

#item_nav ul:after {
   display: block;
   visibility: hidden;
   clear: both;
   content: "";
}

#item_nav .nav_li {
   padding: 10px 0 5px;
   text-align: center;
}

#item_nav .nav_li i {
   font-size: 18px;
   height: 20px;
   color: #fff;
}

#item_nav .nav_li button {
   color: #fff;
}

#item_nav .nav_li .txt {
   display: block;
   line-height: 20px;
   font-size: 11px;
   color: #fff;
}

#item_nav .nav_li img:hover {
   background: #fff;
   opacity: 0.3;
   border-radius: 15px;
   cursor: pointer;
}

/* #nav .nav_li img.on:hover {
    background: #FFF;
    opacity: 0.8;
    border-radius: 15px ;
    cursor:pointer;

}
#nav .nav_li img.off:hover {
    background: #FFF;
    opacity: 0.2;
    border-radius: 15px ;
    cursor:pointer;

} */

#program_nav-about {
   padding-bottom: 4px;
   z-index: 1;
   cursor: pointer;
}
#program_nav-about.active {
   color: #7966ff;
   border-bottom: 3px solid #7966ff;
}
#program_nav-my {
   padding-bottom: 4px;
   z-index: 1;
   cursor: pointer;
}
#program_nav-my.active {
   color: #7966ff;
   border-bottom: 3px solid #7966ff;
}