how to put row onto another one? / CSS - html

Question

on the image as you can see 'Sezon' and 'Poza sezonem' blocks are on another blocks(ND-CZW, PT-SB)
I'm trying to write html code of this image. how can I put Sezon,poza sezonem blocks on the blocks below?
<div class="parent">
<tr>
<td style="text-align: center;background-color: #E96165;color: #fff">Ilosc
gosci</td>
<td class="baslik1">Sezon</td>
<td class="baslik1">Poza sezonem</td>
<td class="baslik1">Poza sezonem 2</td>
</tr>
<tr>
<td class="baslik2"> </td>
<td class="baslik2">ND-CZW</td>
<td class="baslik2">PT-SB</td>
<td class="baslik2">ND-CZW</td>
</tr>
</div>

Answer 1

I would use Flexbox with absolute positioning like this:
.parent {
display: flex;
}
.table {
display: flex;
flex-direction: column;
box-shadow: 0 20px 30px rgba(0,0,0,0.19), 0 6px 6px rgba(0,0,0,0.23);
background: lightgrey;
}
.table:nth-child(2) {
z-index: 2;
}
.table:nth-child(3) {
z-index: 3;
}
.table > div {
display: flex;
flex-direction: row;
}
.cell {
box-sizing: border-box;
display: flex;
height: 60px;
width: 200px;
border-bottom: 1px solid grey;
}
.cell--head {
height: 60px;
position: relative;
}
.cell--logo {
background-color: #E96165;
color: #fff;
padding: 0;
height: 60px;
display: flex;
align-items: center;
justify-content: center;
}
.cell--head > div {
padding-top: 30px;
}
.cell > div {
flex: 1;
text-align: center;
border-left: 1px solid grey;
padding: 20px;
}
.cell > div:first-of-type {
border-left: 0;
}
.label {
position: absolute;
top: -2px;
background: black;
color: white;
transform: translate(-50%, 0%);
left: 50%;
padding: 5px;
font-size: 10px;
}
<div class="parent">
<div class="table">
<div class="cell cell--logo">
Ilosc gosci
</div>
<div class="cell">
Ilosc gosci
</div>
</div>
<div class="table">
<div class="cell cell--head">
<span class="label">Sezon</span>
<div>ND-CZW</div>
<div>ND-CZW</div>
</div>
<div class="cell">
<div>245 pln</div>
<div>245 pln</div>
</div>
</div>
<div class="table">
<div class="cell cell--head">
<span class="label">Poza sezonem</span>
<div>ND-CZW</div>
<div>ND-CZW</div>
</div>
<div class="cell">
<div>245 pln</div>
<div>245 pln</div>
</div>
</div>
<div>
<td class="baslik2"></td>
<td class="baslik2"></td>
<td class="baslik2"></td>
<td class="baslik2"></td>
</div>
</div>
</div>

Answer 2

Your code seems to have some wrong syntax, I tried achieve the same in the fiddle below
http://jsfiddle.net/Parthoghsh820/akhwgg2f/3/
<table>
<thead>
<tr class="header">
<th colspan="2">
<span>Major 1</span>
</th>
<th colspan="2">
<span>Major 2</span>
</th>
</tr>
<tr class="subheader">
<th>col1</th>
<th>col2</th>
<th>col3</th>
<th>col4</th>
</tr>
</thead>
<tbody>
<tr>
<td>data1</td>
<td>data2</td>
<td>data3</td>
<td>data4</td>
</tr>
</tbody>