*{
    margin: 0;
    padding: 0;
}
.ul{
    width: 300px;
    list-style: none;
    display: flex;
    margin: 10px auto;
}
.min{
    width: 200px;
    padding: 5px;
}
.lbox_fotos{
    visibility: hidden;
    opacity: 0;
}
.lbox_fotos:target{
    opacity: 1;
    visibility: visible;
    width:100%;
    height: 100%;
    top:0;
    left:0;
    background: rgba(10,10,10,0.7);
    position: fixed;

}
.box_img_fotos{
    width: 1000px;
    margin: 100px auto;
}
.btn_fotos{
    color: #fff;
    font-family: 'Arial';
    text-decoration: none;
    position: absolute;
    width: 50px;
    height: 50px;
    font-size: 40px;
    text-align: center;
}
#prev{
    left: 5%;
    top:45%;
}
#next{
    right:5%;
    top:45%;
}
#close{
    right:2%;
    top:0;
}
.box_img_fotos img{
    opacity: 0;
   
}
.lbox_fotos:target .box_img img{
    opacity: 1;
    transition: opacity .4s linear;
}