a{
text-decoration: none;
}
img{
        height: 53px;
        }
.nav-item a{
color: aliceblue;
font-weight: bold;
}
.banner{
background-image: url(https://f.chachaoxi.com/file/pb/bannerimg.jpg-webp);
height: 55vh;
    min-height: 300px;
}
.ls-1 { letter-spacing: 0.5em; }
.ls-2 { letter-spacing: 2em; }
.checkbox{
transition: all .3s;
}
.checkbox:hover{
        display: block;
	box-shadow: 0px 2px 12px 3px rgba(140, 140, 140, 0.44);
        transform: translate(3px,3px);
}
.checkbox:hover .card{
       background-color: antiquewhite;
}
.checkbox:hover .card-footer{
color: red;
}
.list-group-title a{
      color: aliceblue;
      font-weight: bold;
      }