3 .container { width:120px; position: absolute; }
4 .multicol { -moz-column-width:50px; -moz-column-gap:10px; -webkit-column-width:50px; -webkit-column-gap:10px; column-width:50px; column-gap:10px; column-fill:auto; height:150px; border:5px solid black; }
5 .block { width:50px; height:50px }
6 .block:hover { background-color: maroon !important; }
7 .layer { height:200px; width:50px }
8 .line2 { position: absolute; top: 343px; left: 8px; }
9 .pos1 { left: 10px; top: 10px; }
10 .pos2 { left: 150px; top: 10px; }
11 .pos3 { left: 10px; top: 200px; }
12 .pos4 { left: 150px; top: 200px; }
14 <div class="container pos1">
16 <div class="multicol">
17 <div class="block" style="background-color:black"></div>
18 <div style="overflow:hidden;" class="layer">
19 <div class="block" style="background-color: #0000f0"></div>
20 <div class="block" style="background-color: #0000d0"></div>
21 <div class="block" style="background-color: #0000b0"></div>
22 <div class="block" style="background-color: #000090"></div>
24 <div class="block" style="background-color:black"></div>
28 <div class="container pos2">
31 <div class="multicol">
32 <div class="block" style="background-color:black"></div>
33 <div style="margin-left: -100px; transform: translate(100px, 0);" class="layer">
34 <div class="block" style="background-color: #0000f0"></div>
35 <div class="block" style="background-color: #0000d0"></div>
36 <div class="block" style="background-color: #0000b0"></div>
37 <div class="block" style="background-color: #000090"></div>
39 <div class="block" style="background-color:black"></div>
44 <div class="container pos3">
46 <div class="multicol">
47 <div class="block" style="background-color:black"></div>
48 <div style="position:relative; margin-left:-100px; left:100px" class="layer">
49 <div class="block" style="background-color: #0000f0"></div>
50 <div class="block" style="background-color: #0000d0"></div>
51 <div class="block" style="background-color: #0000b0"></div>
52 <div class="block" style="background-color: #000090"></div>
54 <div class="block" style="background-color:black"></div>
58 <div class="container pos4">
61 <div class="multicol">
62 <div class="block" style="background-color:black"></div>
63 <div style="opacity:0.99;" class="layer">
64 <div class="block" style="background-color: #0000f0"></div>
65 <div class="block" style="background-color: #0000d0"></div>
66 <div class="block" style="background-color: #0000b0"></div>
67 <div class="block" style="background-color: #000090"></div>
69 <div class="block" style="background-color:black"></div>