Slanted diagonal line in html or css?

Question

I want to make a Table like this

is it possible to add a slanted diagonal bord

Answer 1

Another approach would be to use SVG as it can scale easily to the size of your container.

Example :

div {
  position: relative;
  display:inline-block;
  width: 100px;
  height: 50px;
  border: 1px solid #000;
}
.l{width:200px;}
.xl{width:300px;}
svg {
  position: absolute;
  width: 100%;
  height: 100%;
}

<div class="s">
  <svg viewBox="0 0 10 10" preserveAspectRatio="none">
    <line x1="0" y1="0" x2="10" y2="10" stroke="black" stroke-width="0.2" />
  </svg>
</div>
<div class="l">
  <svg viewBox="0 0 10 10" preserveAspectRatio="none">
    <line x1="0" y1="0" x2="10" y2="10" stroke="black" stroke-width="0.2" />
  </svg>
</div>
<div class="xl">
  <svg viewBox="0 0 10 10" preserveAspectRatio="none">
    <line x1="0" y1="0" x2="10" y2="10" stroke="black" stroke-width="0.2" />
  </svg>
</div>

Answer 2

You could produce this slanted inner border effect using either one of the below methods but both needs the angles (skew/gradient) to be adjusted based on the height and width of your table cell.

Note: This might not be the best option (and I can't think of any other better options either) when the cell dimensions are dynamic/auto as the angles would need modification.

Option 1: Using Skew Transform on a pseudo-element

table,
tr,
td {
  border: 1px solid;
  border-collapse: collapse;
}
td {
  display: inline-block; /* doesn't seem to work in FF without this */
  position: relative;
  overflow: hidden;
  height: 100px;
  width: 200px;
  text-align: center;
  line-height: 100px; /* for vertical centering */
}
td:after {
  position:absolute;
  content: '';
  top: 0px;
  left: 0px;
  height: 100%;
  width: 100%;
  border: 1px solid red;
  -webkit-transform: skewX(63deg);
  -moz-transform: skewX(63deg);
  transform: skewX(63deg);
  -webkit-transform-origin: left bottom;
  -moz-transform-origin: left bottom;
  transform-origin: left bottom;
}

<table>
  <tr>
    <td>
      Test
    </td>
    <td>
      Test
    </td>
  </tr>
  <tr>
    <td>
      Test
    </td>
    <td>
      Test
    </td>
  </tr>
  <tr>
    <td>
      Test
    </td>
    <td>
      Test
    </td>
  </tr>
</table>

Option 2: Using Linear Gradients in Background (Not supported by IE9 and lower)

table,
tr,
td {
  border: 1px solid;
  border-collapse: collapse;
}
td {
  background: -webkit-linear-gradient(45deg, transparent 49%, black 49%, black 51%, transparent 51%);
  background: -moz-linear-gradient(45deg, transparent 49%, black 49%, black 51%, transparent 51%);
  background: linear-gradient(45deg, transparent 49%, black 49%, black 51%, transparent 51%);
  width: 50px;
  height: 50px;
}

<table>
  <tr>
    <td>
      Test
    </td>
    <td>
      Test
    </td>
  </tr>
  <tr>
    <td>
      Test
    </td>
    <td>
      Test
    </td>
  </tr>
  <tr>
    <td>
      Test
    </td>
    <td>
      Test
    </td>
  </tr>
</table>

Answer 3

It is possible by using js & css. Please check the code below.

<canvas id="myCanvas" width="200" height="100"></canvas>
<div id="myTextArea"></div>    
<script>
var c = document.getElementById("myCanvas");
var ctx = c.getContext("2d");
ctx.strokeStyle="red";
ctx.moveTo(0,100);
ctx.lineTo(200,0);
ctx.stroke();
ctx.moveTo(0,0);
ctx.lineTo(200,100);
ctx.stroke();
</script>

<style>
html, body { 
  margin: 0;
  padding: 0;
}

#myCanvas {
  padding: 0;
  margin: 0;
  width: 200px;
  height: 100px;
}

#myTextArea {
  position: absolute;
  left: 0px;
  right: 0;
  height: 102px;
  width: 202px;
  background: rgba(255,255,255,0);
  padding: 0;
  margin: 0;
}
</style>


`

Answer 4

Based on CSS3 linear-gradients solution except that the angle is not hard coded:

table:nth-of-type(1) td {
  background-image: linear-gradient(
    to top right,
    white 48%,
    black,
    white 52%
  );
}
table:nth-of-type(2) td {
  background-image: linear-gradient(
    to top right,
    papayawhip calc(50% - 1px),
    black,
    papayawhip calc(50% + 1px)
  );
}
/* for testing */
table {
  border-collapse: collapse;
  margin-top: 1em;
  margin-bottom: 1em;
}
td:nth-child(odd) {
  width: 10em;
}
td:nth-child(even) {
  width: 20em;
}

<table border="1">
  <tbody>
    <tr>
      <td>Narrow</td>
      <td>Wide</td>
    </tr>
    <tr>
      <td>Narrow</td>
      <td>Wide</td>
    </tr>
  </tbody>
</table>
<table border="1">
  <tbody>
    <tr>
      <td>Narrow</td>
      <td>Wide</td>
    </tr>
    <tr>
      <td>Narrow</td>
      <td>Wide</td>
    </tr>
  </tbody>
</table>

Answer 5

In case this is useful, I created a plain HTML + CSS solution for this which only needs small customization of the cells height and colors:

https://codepen.io/davoscript/pen/GdWMwV

.equilibrium{
  width: 100%;
  border: 1px solid #999;
  border-right: none;
  border-bottom: none;
  background: #8bc34a;
}

.equilibrium td{
    border-right: 1px solid #999;
    border-bottom: 1px solid #999;
}

.equilibrium td{
  position: relative;
  height: 200px;
}

.equilibrium .sup{
  display: block;
  position: relative;
  width: 50%;
  float: left;
  padding-bottom: 15%;
  line-height: 100%;
  text-align: center;
  z-index: 1;
}

.equilibrium .inf{
  display: block;
  position: relative;
  width: 50%;
  float: left;
  padding-top: 15%;
  line-height: 100%;
  text-align: center;
  z-index: 1;
}

.equilibrium td::after{
  content: "";
  position: absolute;
  z-index: 0;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(255,255,255,.5);
  background-size: cover;
  clip-path: polygon(100% 0%, 0% 0%, 0% 100%);
}

<table class="equilibrium" cellspacing="0" cellpadding="0">
  <tbody>
    <tr>
      <td>
        <span class="sup">1</span>
        <span class="inf">2</span>
      </td>
      <td>
        <span class="sup">1</span>
        <span class="inf">2</span>
      </td>
    </tr>
    <tr>
      <td>
        <span class="sup">1</span>
        <span class="inf">2</span>
      </td>
      <td>
        <span class="sup">1</span>
        <span class="inf">2</span>
      </td>
    </tr>
  </tbody>
<table>

Hope it helps someone.

Answer 6

you can add the transform-origin property and changed the translate value

div.line
{
    position: relative;
    z-index: 1;
    left: -61px;
    width: 423px;
    height: 1px;
    background-color: #000;
    transform: rotate(45deg);
}

Check the fiddle:http://jsfiddle.net/LWAKn/123/

let me know if u are looking for something else