is it possible to do a curved line with css gradient?

Question

I have this design from a client with two layers of gradients in a button. The tricky thing is, one of the layers has a curved edge. I've mocked up the button so you have a sense of what I'm saying, hopefully.

What I managed to do is a straight edge (see code snippet, color difference is not important, just need the curve). Does anyone have done this before? Or does it have to be a background image? Thanks!

P.S. I also thought about using radial gradient on a pseudo element and absolute position it, but couldn't get the exact straight edge look like the linear gradient.

a {
  background-image: linear-gradient(-155deg,rgba(74,148,214,.4) 45%,rgba(255,255,255,.08) 15%),linear-gradient(258deg,rgba(87,238,255,.1),rgba(77,108,211,.2));
  background-color: rgba(74,148,214,.9);
  color: #fff;
  width: 200px;
  height: 40px;
  border-radius: 10px;
  margin-top: 50px;
  display: block;
  text-align: center;
  line-height: 40px;
}

<a>
  Some button
</a>

Blazemonger · Accepted Answer · 2017-08-03 21:05:07Z

23

You can get pretty close by using a radial-gradient instead of linear:

a {

background-image: 
  radial-gradient(ellipse farthest-corner at 0 140%, #3c84cc 0%, #316dc2 70%, #4e95d3 70%);
  color: white;
  width: 200px;
  height: 50px;
  border-radius: 10px;
  margin-top: 50px;
  display: block;
  text-align: center;
  line-height: 50px;
}

<a>
  Some button
</a>

edited Aug 3, 2017 at 21:05

answered Aug 3, 2017 at 20:58

Blazemonger

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1 Comment

DimSum Over a year ago

Thanks! I was working in that direction too. Just couldn't get the exact look I want... this looks great!

Michael Coker · Accepted Answer · 2017-08-03 20:56:51Z

3

You can use a pseudo element to draw the curve using a circle, then just use whatever gradient you want as the background(s)

a {
    background-color: lightblue;
    color: #fff;
    width: 200px;
    height: 40px;
    border-radius: 10px;
    margin-top: 50px;
    display: block;
    text-align: center;
    line-height: 40px;
    position: relative;
    z-index: 1;
    overflow: hidden;
}
a:after {
    content: '';
    position: absolute;
    background-color: blue;
    width: 600px;
    height: 200px;
    border-radius: 50%;
    top: 0;
    left: 0;
    transform: translate(-49%,0);
    z-index: -1;
}

<a>
  Some button
</a>

answered Aug 3, 2017 at 20:56

Michael Coker

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1 Comment

DimSum Over a year ago

Thanks! I was going in that direction too, but was trying to use radial gradient and couldn't get the exact look I wanted. I'll try using linear gradient on the pseudo element.

theAlexandrian · Accepted Answer · 2017-08-04 07:58:23Z

3

I just modified a bit @Blazemonger's post. I fixed the position of the curved line.

a {
  background-image: radial-gradient(ellipse farthest-corner at -10% 250%, #3c84cc 0%, #315dc2 80%, #4e95d3 80%);
  color: white;
  width: 200px;
  height: 50px;
  border-radius: 10px;
  margin-top: 50px;
  display: block;
  text-align: center;
  line-height: 50px;
}

<a>Some button</a>

answered Aug 4, 2017 at 7:58

theAlexandrian

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