html {
    min-height:100%;
    user-select: none;
  }

body {
    background-color:rgb(40,42,46);
    background-size:cover;
}



a {
    text-decoration:none;
    color:inherit;
    opacity:1;
    font-weight:bold;
    font-size:20px;
}

.link:hover {
    text-decoration:none;
    color:lightgreen;
    font-size:22px;
    transition:0.2s;


}

.holdRight:hover {
    text-decoration:none;
    color:lightgreen;
    transition:0.2s;
}

#margintop0 {
    margin-top:10px;
    
}

#box {
    background-color:rgb(29,31,33);
    border:5px solid rgb(22,22,22);
    padding:10px;
    margin-top:200px;
    margin-bottom:200px;
    margin-right:350px;
    margin-left:350px;
    height:600px;
}

#box2 {
    column-count:4;
    column-width:100px;
    padding-top:120px;
}

.bgopac {
    opacity: 0.8;
    transition: 1s;
}

.bgopac:hover {
    opacity: 0.95;
    transition: 1s;
}

.boxtxt {
    color:skyblue;
    opacity:0.1;
}

.boxtxt:hover {
    opacity: 0.99;

}

#dn0 {
    display:none;
    height:100px;
    width:1170px;
}

ul{
    list-style-type:none;
    padding-left:0;
}