SCSS

by Manju06

HTML

<table>
    <thead>
        <tr class="Header">
            <th>sticky header <button>tooltip</button></th>
            <th>sticky header</th>
            <th>sticky header</th>
        </tr>
    </thead>
    <tr>
        <td>data</td>
        <td>data</td>
        <td>data</td>
    </tr>
    <tr>
        <td>data</td>
        <td>data</td>
        <td>data</td>
    </tr>
    <tr>
        <td>data</td>
        <td>data</td>
        <td>data</td>
    </tr>
    <tr>
        <td>data</td>
        <td>data</td>
        <td>data</td>
    </tr>
    <tr>
        <td>data</td>
        <td>data</td>
        <td>data</td>
    </tr>
    <tr>
        <td>data</td>
        <td>data</td>
        <td>data</td>
    </tr>
</table>

CSS

table {
    border-collapse: collapse;
    width: 100%;
}

td {
   margin-top:300px;
    height: 200px;
    border: 1px solid black;
}

.Header {
  border: 1px solid black;
   height: 200px;
   width:100%;
   top: 0;
  position:fixed;

}


button:hover::after {
    z-index: 9999999;
    position: absolute;
    display:inline;
    content: "some tooltip content";
    bottom: 50%;
    left: 250px;
    background-color: yellow;
    padding: 10px 8px;
    min-width: 240px;
    visibility: visible;
}