30-seconds-of-code/snippets/gradient-border.md

title, tags

title	tags
Gradient border	visual,intermediate

Creates a gradient border.

<div class="gradient-border">
  <p>Gradient border!</P>
</div>

.gradient-border {
  position: relative;
  border: solid 1px transparent;
  border-radius: 10px;
  background-color: #f7f7fe;
  background-clip: padding-box;
  margin: 8px;
  padding: 8px 16px;
}

.gradient-border:before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: -1;
  margin: -1px;
  border-radius: inherit;
  background: linear-gradient(to bottom, #d3e7ec, #fff);
}

Explanation

• Create a block with a transparent border, relative position and a background.
• Absolute position the :before pseudo-element with a gradient background and z-index: -1.
• Use top: 0, right: 0, bottom: 0, left: 0 to make the pseudo-element equal size to its parent element, margin: -1px to make it larger.
• Use background-clip: padding-box to not draw the parent element's background below the border.

Browser support

• https://caniuse.com/#feat=mdn-css_properties_background_background-clip