Create a border gradient for each of the 4 borders

Question

I want to create the same linear gradient for each border.

The border gradient with 5 colors starts from

transparent to white to bla         


        

Answer 1

How about using a radial gradient? Although this is just a mock up, you can see the basic effect.

.outer {
  vertical-align:top;
  display:inline-block;
  height: 100px;
  width: 100px;
  position: relative;
background: -moz-radial-gradient(center, ellipse cover,  rgba(0,0,0,1) 1%, rgba(0,0,0,1) 50%, rgba(0,0,0,0) 90%, rgba(0,0,0,0) 99%, rgba(0,0,0,0) 100%); /* FF3.6+ */
background: -webkit-gradient(radial, center center, 0px, center center, 100%, color-stop(1%,rgba(0,0,0,1)), color-stop(50%,rgba(0,0,0,1)), color-stop(90%,rgba(0,0,0,0)), color-stop(99%,rgba(0,0,0,0)), color-stop(100%,rgba(0,0,0,0))); /* Chrome,Safari4+ */
background: -webkit-radial-gradient(center, ellipse cover,  rgba(0,0,0,1) 1%,rgba(0,0,0,1) 50%,rgba(0,0,0,0) 90%,rgba(0,0,0,0) 99%,rgba(0,0,0,0) 100%); /* Chrome10+,Safari5.1+ */
background: -o-radial-gradient(center, ellipse cover,  rgba(0,0,0,1) 1%,rgba(0,0,0,1) 50%,rgba(0,0,0,0) 90%,rgba(0,0,0,0) 99%,rgba(0,0,0,0) 100%); /* Opera 12+ */
background: -ms-radial-gradient(center, ellipse cover,  rgba(0,0,0,1) 1%,rgba(0,0,0,1) 50%,rgba(0,0,0,0) 90%,rgba(0,0,0,0) 99%,rgba(0,0,0,0) 100%); /* IE10+ */
background: radial-gradient(ellipse at center,  rgba(0,0,0,1) 1%,rgba(0,0,0,1) 50%,rgba(0,0,0,0) 90%,rgba(0,0,0,0) 99%,rgba(0,0,0,0) 100%); /* W3C */
filter: progid:DXImageTransform.Microsoft.gradient( startColorstr='#000000', endColorstr='#00000000',GradientType=1 ); /* IE6-9 fallback on horizontal gradient */


}
.inner {
  height: 90%;
  width: 90%;
  position: absolute;
  left: 5%;
  top: 5%;
  background: white;
}

  

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Resources

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• 1 * gradient generator

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Note

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• Not suitable for projects for <=IE9