Gradient borders

Question

I\'m trying to apply a gradient to a border, I thought it was as simple as doing this:

border-color: -moz-linear-gradient(top, #555555, #111111);


        

Answer 1

Try the below example:

.border-gradient {
      border-width: 5px 5px 5px 5px;
      border-image: linear-gradient(45deg, rgba(100,57,242,1) 0%, rgba(242,55,55,1) 100%);
      border-image-slice: 9;
      border-style: solid;
}

Answer 2

Try this, it worked for me.

div{
  border-radius: 20px;
  height: 70vh;
  overflow: hidden;
}

div::before{
  content: '';
  display: block;
  box-sizing: border-box;
  height: 100%;

  border: 1em solid transparent;
  border-image: linear-gradient(to top, red 0%, blue 100%);
  border-image-slice: 1;
}

<div></div>

The link is to the fiddle https://jsfiddle.net/yash009/kayjqve3/1/ hope this helps

Answer 3

For cross-browser support you can try as well imitate a gradient border with :before or :after pseudo elements, depends on what you want to do.

Answer 4

It's a hack, but you can achieve this effect in some cases by using the background-image to specify the gradient and then masking the actual background with a box-shadow. For example:

p {
  display: inline-block;
  width: 50px;
  height: 50px;
  /* The background is used to specify the border background */
  background: -moz-linear-gradient(45deg, #f00, #ff0);
  background: -webkit-linear-gradient(45deg, #f00, #ff0);
  /* Background origin is the padding box by default.
  Override to make the background cover the border as well. */
  -moz-background-origin: border;
  background-origin: border-box;
  /* A transparent border determines the width */
  border: 4px solid transparent;
  border-radius: 8px;
  box-shadow:
    inset 0 0 12px #0cc, /* Inset shadow */
    0 0 12px #0cc, /* Outset shadow */
    inset -999px 0 0 #fff; /* The background color */
}

From: http://blog.nateps.com/the-elusive-css-border-gradient

Answer 5

WebKit now (and Chrome 12 at least) supports gradients as border image:

-webkit-border-image: -webkit-gradient(linear, left top, left bottom, from(#00abeb), to(#fff), color-stop(0.5, #fff), color-stop(0.5, #66cc00)) 21 30 30 21 repeat repeat;

Prooflink -- http://www.webkit.org/blog/1424/css3-gradients/
Browser support: http://caniuse.com/#search=border-image

Answer 6

border-image-slice will extend a CSS border-image gradient

This (as I understand it) prevents the default slicing of the "image" into sections - without it, nothing appears if the border is on one side only, and if it's around the entire element four tiny gradients appear in each corner.

  border-bottom: 6px solid transparent;
  border-image: linear-gradient(to right, red , yellow);
  border-image-slice: 1;