grid layout

<div class="wrapper">
<div class="box a">A</div>
<div class="box b">B</div>
<div class="box c">C</div>
<div class="box d">D</div>
<div class="box e">E</div>
<div class="box f">F</div>
<div class="box g">G</div>
<div class="box h">H</div>
<div class="box i">I</div>
<div class="box j">J</div>
</div>

css:

.wrapper {
display: grid;
grid-template-columns: 100px 10px 100px 10px 100px 10px 100px;
grid-template-rows: auto 10px auto 10px auto;
}
.a{
grid-area: 1 / 1 / 2 / 2;
}
.b {
grid-area: 1 / 3 / 2 /4;
}
.c { 
grid-area: 1 / 5 / 2 / 6;
}
.d { 
grid-area: 1 / 7 / 2 / 8;
}
.e { 
grid-area: 3 / 1 / 4 / 2;
}
.f {
grid-area: 3 / 3 / 4 / 4;
}
.g {
grid-area: 3 / 5 / 4 / 6;
}
.h {
grid-area: 3 / 7 / 4 / 8;
}
.i {
grid-area: 5 / 1 / 6 / 2;
}
.j {
grid-area: 5 / 3 / 6 / 4;
}</font>
</font>

grid-column-start: 1;
grid-column-end: 2; 
grid-row-start: 1;
grid-row-end: 2;

grid-column: 3 / 4; 
grid-row: 5 / 6;