CODEWITHSUNDEEP
htmlcsstwitter-bootstrap
Steve
Steve

Reputation: 14922

Table headers position:sticky and border issue

I have a table that I'm trying to get sticky headers, following this article. Except my table style has the headers with a border at the top and bottom.

The part I do not understand is that the top/bottom borders applied to the th scroll away with the rest of the table instead of staying with the "stuck" header cells. Is there anything that can be done about this?

Working sample can be found here: https://codepen.io/smlombardi/pen/MNKqQY?editors=1100#0

let string = ''
console.log("oj")
for(let i=0; i<100; i++) {
  string += `
        <tr>
          <td>Malcolm Reynolds</td>
          <td>Captain</td>
          <td>9035749867</td>
          <td>mreynolds</td>
        </tr>
  `
}
document.getElementsByTagName('tbody')[0].innerHTML += string
.table-sticky-container {
  height: 200px;
  overflow-y: scroll;
  border-top: 1px solid green;
  border-bottom: 1px solid green;
}

.table-sticky {

  th {
    position: sticky;
    top: 0;
    z-index: 2;
    border-top: 1px solid red !important;
    border-bottom: 2px solid red !important;
  }
}
<div class="table-sticky-container">
  <table class="table table-sticky">
    <thead class="thead-light">
      <tr>
        <th scope="col">Name</th>
        <th scope="col">Title</th>
        <th scope="col">ID</th>
        <th scope="col">Username</th>
      </tr>
    </thead>
    <tbody>
      <tr>
          <td>Malcolm Reynolds</td>
          <td>Captain</td>
          <td>9035749867</td>
          <td>mreynolds</td>
        </tr>
    </tbody>
  </table>
</div>

Upvotes: 52

Views: 38366

Answers (4)

Grzegorz T.
Grzegorz T.

Reputation: 4153

You can add

.table {
  border-collapse: separate;
}

But unfortunately it looks bad, a better solution will be adding a workaround using a pseudo-element.

th:after,
th:before {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
}

th:before {
  top: -1px;
  border-top: 1px solid red;
}

th:after {
  bottom: -1px;
  border-bottom: 2px solid red;
}


.table-sticky-container {
  height: 200px;
  overflow-y: scroll;
  border-top: 1px solid green;
  border-bottom: 1px solid green;
}

.table-sticky th {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  z-index: 2;
}

th:after,
th:before {
  content: '';
  position: absolute;
  left: 0;
  width: 100%;
}

th:before {
  top: -1px;
  border-top: 1px solid red;
}

th:after {
  bottom: -1px;
  border-bottom: 2px solid red;
}
<link rel='stylesheet' href='https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/4.1.3/css/bootstrap.min.css'>

<div class="table-sticky-container">
    <table class="table table-sticky">
      <thead class="thead-light">
        <tr>
          <th scope="col">Name</th>
          <th scope="col">Title</th>
          <th scope="col">ID</th>
          <th scope="col">Username</th>
        </tr>
      </thead>
      <tbody>
        <tr>
          <td>Malcolm Reynolds</td>
          <td>Captain</td>
          <td>9035749867</td>
          <td>mreynolds</td>
        </tr>
        <tr>
          <td>Zoe Washburne</td>
          <td>First Officer</td>
          <td>8908980980</td>
          <td>zwashburne</td>
        </tr>
        <tr>
          <td>Kaylee Frye</td>
          <td>Engineer</td>
          <td>6678687678</td>
          <td>kfrye</td>
        </tr>
        <tr>
          <td>Malcolm Reynolds</td>
          <td>Captain</td>
          <td>9035749867</td>
          <td>mreynolds</td>
        </tr>
        <tr>
          <td>Zoe Washburne</td>
          <td>First Officer</td>
          <td>8908980980</td>
          <td>zwashburne</td>
        </tr>
        <tr>
          <td>Kaylee Frye</td>
          <td>Engineer</td>
          <td>6678687678</td>
          <td>kfrye</td>
        </tr>
      </tbody>
    </table>
  </div>

The second solution

.table {
  border-collapse: collapse;
}

.table-sticky thead th {
  position: -webkit-sticky;
  position: sticky;
  top: 0;
  z-index: 2;
  box-shadow: inset 0 1px 0 red, inset 0 -2px 0 red;
}

Upvotes: 64

Neklar
Neklar

Reputation: 71

Don't use border-collapse and draw the lines as follows :

td, th {
    border-bottom: 1px solid grey;
    border-right: 1px solid grey;
}

table {
    border-spacing: 0px;
    border-left: 1px solid grey
}

th {
    background-color:#c5e8ec;
    position: sticky;
    position: -webkit-sticky;
    border-top: 1px solid grey;
    top:0;
}

Upvotes: 7

SarthakC
SarthakC

Reputation: 565

You can add

.table {
  border-collapse: separate;
  border-spacing: 0;
}

Upvotes: 45

Roman Makarov
Roman Makarov

Reputation: 17

Another working solution (tested at latest Chrome and FF) - wrap th/td content with divs and use those divs borders instead of cell's borders.

<div class="wrapper">
  <table>
  <thead>
    <tr>
      <th>
        <div class="cell">head1</div>
      </th>
      <th>
        <div class="cell">head2</div>
      </th>
      <th>
        <div class="cell">head3</div>
      </th>
      <th>
        <div class="cell">head4</div>
      </th>
      <th>
        <div class="cell">head5</div>
      </th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>
        <div class="cell">1</div>
      </td>
      <td>
        <div class="cell">1</div>
      </td>
      <td>
        <div class="cell">1</div>
      </td>
      <td>
        <div class="cell">1</div>
      </td>
      <td>
        <div class="cell">1</div>
      </td>
    </tr>
    <tr>
      <td>
        <div class="cell">1</div>
      </td>
      <td>
        <div class="cell">1</div>
      </td>
      <td>
        <div class="cell">1</div>
      </td>
      <td>
        <div class="cell">1</div>
      </td>
      <td>
        <div class="cell">1</div>
      </td>
    </tr>
    <tr>
      <td>
        <div class="cell">1</div>
      </td>
      <td>
        <div class="cell">1</div>
      </td>
      <td>
        <div class="cell">1</div>
      </td>
      <td>
        <div class="cell">1</div>
      </td>
      <td>
        <div class="cell">1</div>
      </td>
    </tr>
  </tbody>
</table>
</div>

table {
  border-collapse: collapse;
  table-layout: fixed;
  width: 500px;
}

.wrapper {
  height: 150px;
  overflow: auto;
}

td, th {
  width: 150px;
  height: 50px;
  text-align: center;
  font-size: 32px;
  padding: 0;
}

th {
  position: sticky;
  top: 0;
  left: 0;
  background-color: #fff;
}

.cell {
  border: 1px solid black;
  height: 100%;
}

td .cell {
  border-top: none;
  border-left: none;
}

th .cell {
  border-left: none;
}

td:first-child .cell,
th:first-child .cell {
  border-left: 1px solid black;
}

Upvotes: 0

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