javascript - How can I keep this table header fixed? -


i'd keep table header fixed, problem when set thead position fixed loses size. basically, want keep thead moving rest of table original shape , size.

thanks in advance.

table {    margin: 100 0 100 0;    width: 100%;  }  th,  td,  table {    /*word-wrap: break-word;*/    border: 1px solid black;    border-radius: 3px;  }  body {    overflow: hidden;  }  .scrollable {    height: 100%;    display: flex;    flex-direction: column;    overflow-y: scroll;  }  thead {    position: fixed;    width: 100%;  }  .myhead {    width: auto;    border: 11px solid blue;  }
<!doctype html>  <html>    <head>    <title>mytable</title>  </head>    <body>    <div class="scrollable">      <table>          <thead>            <tr class="myhead">            <th class="header" align="center">title</th>            <th class="header" align="center">title</th>          </tr>          </thead>          <tbody>          <tr>            <td align="center">id</td>            <td align="center">id</td>          </tr>          <tr>            <td align="center">id</td>            <td align="center">id</td>          </tr>          <tr>            <td align="center">id</td>            <td align="center">id</td>          </tr>          <tr>            <td align="center">id</td>            <td align="center">id</td>          </tr>          <tr>            <td align="center">id</td>            <td align="center">id</td>          </tr>          <tr>            <td align="center">id</td>            <td align="center">id</td>          </tr>          <tr>            <td align="center">id</td>            <td align="center">id</td>          </tr>          <tr>            <td align="center">id</td>            <td align="center">id</td>          </tr>          <tr>            <td align="center">id</td>            <td align="center">id</td>          </tr>          <tr>            <td align="center">id</td>            <td align="center">id</td>          </tr>          <tr>            <td align="center">id</td>            <td align="center">id</td>          </tr>          </tbody>      </table>    </div>    <div>----------------200px--------------></div>  </body>    </html>

check out question provides several resources may solve problem: freeze top row html table (fixed table header scrolling)

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