Styling Arrow Containers with CSS

Is there a way to style this box using CSS?

I've come across tutorials on creating boxes with arrows but none of them seem to work for my specific situation.

Answer №1

When crafting your element, I implemented a 1px border around it using a single <div> element and leveraging the :before and :after pseudo-elements (supported by most browsers). The primary rectangle features a standard 1px border, but the triangular components are essentially composed of two triangles, one with a lighter shade than the other.

The lighter triangle is positioned over the darker one in such a way that it appears hidden, slightly shifted to reveal the darker triangle beneath. This creates the optical illusion of a 1px dark border on the triangle itself.

If you're interested in a related topic, check out this question:

How can I create a "tooltip tail" using pure CSS?

One of the answers provides an excellent explanation on achieving this triangular effect:

Furthermore, for those interested in exploring advanced border styling techniques, here's a valuable resource (credits to PSCoder):

... and here's a handy css generator worth checking out (thanks to David Taiaroa):


With that said, let's dive into the corresponding code:

    #arrow {
      width: 128px;
      height: 100px;
      background-color: #ccc;
      border: 1px solid #999;
      position: relative;
    }
    #arrow:after {
      content: '';
      position: absolute;
      top: 0px;
      left: 128px;
      width: 0;
      height: 0;
      border: 50px solid transparent;
      border-left: 12px solid #ccc;
    }
    #arrow:before {
      content: '';
      position: absolute;
      top: 0px;
      left: 129px;
      width: 0;
      height: 0;
      border: 50px solid transparent;
      border-left: 12px solid #999;
    }
<div id="arrow"></div>

Answer №2

Click here to see my innovative solution!

I have discovered two straightforward methods to achieve this. The first method, although less efficient, involves using 2 elements. I have cleverly utilized the :after pseudo-element and applied position:absolute for two specific reasons.

  1. You can precisely position the element as needed
  2. It avoids any cutoff at the end of the triangle

The crux of creating the triangle lies in manipulating the border property. By setting two borders with a color of transparent, positioned opposite to the direction desired, you are able to form the basic shape. The crucial final border, perpendicular to the others, completes the arrow's appearance. For instance, for a right triangle, utilize border-left with your chosen color. To ensure proper height alignment, aim for half of the intended box's height.

Answer №3

Utilizing SVG is the optimal approach for crafting such shapes as it provides simplicity and scalability.

To achieve the desired shape, we can utilize SVG's polygon or path element and fill it with a solid color, gradient, or pattern.

The polygon element uses only one attribute, points, which comprises a list of points where each point contains 2 numbers - an x coordinate and a y coordinate. The shape is automatically closed by drawing a straight line from the last point to the initial point.

Below is the essential code snippet to generate this shape:

<polygon points="10,12 265,10 285,93 265,184 10,184"
         stroke="#333"
         stroke-width="2"
         fill="#eee" />

Here is a concise explanation of the code above:

  • points specifies the structure of the shape.
  • stroke defines the color of the outline/border.
  • stroke-width determines the thickness of the outline/border.
  • fill sets the color for the interior shape filling.

Output Image:

https://i.sstatic.net/4KoSK.png

Working Example:

body {
  background: #b6cdc7 url("https://www.hdwallpapers.net/previews/hot-air-balloon-over-the-mountain-987.jpg") no-repeat;
  background-position: center bottom;
  background-size: cover;
  margin: 0;
}

.box {
  justify-content: center;
  align-items: center;
  height: 100vh;
  display: flex;
}
<div class="box">
  <svg width="300" height="200" viewBox="0 0 300 200">
    <polygon points="10,12 265,10 285,93 265,184 10,184" stroke="#333" stroke-width="2" fill="#eee" />
  </svg>
</div>

This shape can also be filled with gradients or patterns.

https://i.sstatic.net/B0ubZ.png

Working Example:

body {
  background: #b6cdc7 url("https://www.hdwallpapers.net/previews/hot-air-balloon-over-the-mountain-987.jpg") no-repeat;
  background-position: center bottom;
  background-size: cover;
  margin: 0;
}

.box {
  justify-content: center;
  align-items: center;
  height: 100vh;
  display: flex;
}
<div class="box">
  <svg width="300" height="200" viewBox="0 0 300 200">
    <defs>
      <linearGradient id="grad">
        <stop offset="0" stop-color="#11a798" />
        <stop offset="1" stop-color="#23645d" />
      </linearGradient>
    </defs>
    <polygon id="shape" points="10,12 265,10 285,93 265,184 10,184" stroke="#333" stroke-width="2" fill="url(#grad)" />
  </svg>
</div>

We can add shadows to this shape using SVG's filters.

https://i.sstatic.net/4HzDL.png

Working Example:

body {
  background: #b6cdc7 url("https://www.hdwallpapers.net/previews/hot-air-balloon-over-the-mountain-987.jpg") no-repeat;
  background-position: center bottom;
  background-size: cover;
  margin: 0;
}

.box {
  justify-content: center;
  align-items: center;
  height: 100vh;
  display: flex;
}
<div class="box">
  <svg width="300" height="200" viewBox="0 0 300 200">
    <defs>
      <linearGradient id="grad">
        <stop offset="0" stop-color="#11a798" />
        <stop offset="1" stop-color="#23645d" />
      </linearGradient>
      <filter id="shadow">
        <feGaussianBlur in="SourceAlpha" stdDeviation="4" />
        <feMerge>
          <feMergeNode />
          <feMergeNode in="SourceGraphic" />
        </feMerge>
      </filter>
    </defs>
    <polygon id="shape" points="10,12 265,10 285,93 265,184 10,184" stroke="#333" stroke-width="2" fill="url(#grad)" filter="url(#shadow)" />
  </svg>
</div>

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