.gg-box{display:grid;
grid-template-columns:repeat(auto-fit,minmax(100px,1fr));
grid-auto-rows:100px;
grid-gap:10px}

.gg-box img{object-fit:cover;
cursor:pointer;
width:100%;
height:100%;
border-radius:9px}
.gg-box img:hover{opacity:.98}

#gg-screen{position:fixed;
width:100%;
height:100%;
z-index:1;
top:0;left:0;
background:rgba(0,0,0,0.70);
z-index:9999;
text-align:center}

#gg-screen .gg-image{height:100%;display:inline-flex;justify-content:center;align-items:center}
#gg-screen .gg-image img{max-width:100%;max-height:100%;margin:0 auto}

.gg-bt{
width:50px;height:50px;background:rgba(255,255,255,0.6);
color:#222;
text-align:center;
line-height:47px;
vertical-align:middle;
cursor:pointer;
-moz-transition:all
        
.4s ease;-o-transition:all 
.4s ease;-webkit-transition:all 
.4s ease;transition:all
.4s ease;font-size:25px;border:1px solid rgba(0,0,0,0.05);

box-sizing:border-box;
padding-left:2px;
position:fixed;
bottom:10px
}

.gg-bt:hover{
background:rgba(255,255,255,0.8);
border:1px solid rgba(0,0,0,0.5)}

.gg-close{top:10px}
.gg-close,.gg-next{right:10px}
.gg-prev{right:61px}
.gg-prev,.gg-next{bottom:10px}

@media(min-width:478px){
.gg-box img:nth-child(3n+0){grid-row-end:span 3}}

@media(max-width:768px){
.gg-box{
grid-template-columns:repeat(auto-fit,minmax(150px,1fr));
grid-auto-rows:150px;grid-gap:8px}}

@media(max-width:450px){
.gg-box{
grid-template-columns:repeat(auto-fit,minmax(100px,1fr));
grid-auto-rows:100px;grid-gap:9px}}