ARTICLE AD BOX
table {
border-collapse: collapse;
}
th,
td {
padding: 10px;
border: 1px solid black;
}
th {
position: relative;
z-index: 0;
}
th:before {
content: "";
position: absolute;
z-index: -1;
inset: 0;
backdrop-filter: blur(8px);
}
html {
min-height: 100%;
background: repeating-linear-gradient(135deg,#0000 0 15px,#ddd 0 30px);
}
<table>
<tr>
<th>Hello</th>
<th>World</th>
</tr>
<tr>
<td>1</td>
<td>2</td>
</tr>
<tr>
<td>3</td>
<td>4</td>
</tr>
</table>
