Background, hover and transition - Why it doesn't work? [duplicate] - html

Question

This question already has answers here:
Use CSS3 transitions with gradient backgrounds
(19 answers)
Closed 1 year ago.
I'm trying to add a transition to a button I have that's background is made with css linear-gradient but it's not working.
This is the css for my button.
a.button
{
background: -webkit-gradient(linear, left top, left bottom, color-stop(0%,#green), color-stop(100%,#a5c956));
-webkit-transition: background 5s linear;
}
a.button:hover
{
-webkit-gradient(linear, left top, left bottom, color-stop(0%,#greenhover), color-stop(100%,#89af37))
}
If you're wondering about #green and #greenhover, I'm using .less to make my css.
Anything wrong with this? Any ideas?

Answer 1

Sadly, you really can't transition gradients for now.
So, the only workable workaround is using an extra element with needed gradient and transition it's opacity:
a.button {
position: relative;
z-index: 9;
display: inline-block;
padding: 0 10px;
background: -webkit-gradient(linear, 0 0, 0 100%, from(green), to(#a5c956));
background: -webkit-linear-gradient(top, green, #a5c956);
background: -moz-linear-gradient(top, green, #a5c956);
background: -o-linear-gradient(top, green, #a5c956);
background: linear-gradient(top, green, #a5c956);
}
.button-helper {
position: absolute;
z-index: -1;
top: 0;
left: 0;
width: 100%;
height: 100%;
opacity: 0;
background: -webkit-gradient(linear, 0 0, 0 100%, from(lime), to(#89af37));
background: -webkit-linear-gradient(top, lime, #89af37);
background: -moz-linear-gradient(top, lime, #89af37);
background: -o-linear-gradient(top, lime, #89af37);
background: linear-gradient(top, lime, #89af37);
-webkit-transition: opacity 1s linear;
-moz-transition: opacity 1s linear;
-o-transition: opacity 1s linear;
transition: opacity 1s linear;
}
a.button:hover .button-helper {
opacity: 1;
}
<span class="button-helper"></span>button

Answer 2

it's tricky.. and of course tricky is cool ;)
okay.. i got a solution. and it's basically done via amazing :before selector
#cool-hover{
width: 120px;
height: 120px;
display: block;
cursor: pointer;
border-radius: 10px;
box-shadow: 0 0 15px rgba(0,0,0,0.3);
margin: 0px auto 24px auto;
transition: all 0.5s;
position: relative;
overflow: hidden;
}
#cool-hover:before{
border-radius: inherit;
display: block;
width: 200%;
height: 200%;
content: '';
position: absolute;
top: 0;
left: 0;
background: linear-gradient(135deg, #21d4fd 25%, #b721ff 75%);
transition: all 0.5s;
transform: translate(-25%, -25%);
z-index: 0;
}
#cool-hover:after{
border-radius: 9px;
display: block;
width: 108px;
height: 108px;
margin: 6px;
background: url('https://i.imgur.com/w0BjFgr.png');
background-size: cover;
content: '';
position: absolute;
top: 0; left: 0;
z-index: 1;
}
#cool-hover:hover:before{
transform: translate(-25%, -25%) rotate(-180deg);
}
#cool-hover:hover{
box-shadow: 0 0 35px rgba(0,0,0,0.3);
}
<div id="cool-hover"></div>
NOTE : i just added the :after sudo class just for the small on top image placeholder purpose..
have a nice awesome styling ;)

Answer 3

I know this pretty old but I could not find any good solution yet. So here is my solution
First Make gradient on ":before and hide it with opacity then transition opacity 1 on hover.
https://jsfiddle.net/sumon380/osqLpboc/3/
.button {
text-decoration: none;
padding: 10px 25px;
font-size: 20px;
color: #333;
display: inline-block;
background: #d6e9eb;
position: relative;
z-index: 1;
transition: color 0.3s ease-out;
}
.button:before {
background: #91a5f4;
background: linear-gradient(135deg, #91a5f4 0%, #b08cf9 86%);
content: "";
width: 100%;
height: 100%;
top: 0;
left: 0;
position: absolute;
z-index: -1;
opacity: 0;
transition: opacity 0.3s ease-out;
}
.button:hover:before {
opacity: 1;
}
.button:hover {
color: #fff;
}
<a class="button" href="#">Button</a>

Answer 4

You can fake gradient transitions using drop shadows!
For instance, from one of my pages:
c {
color: #FFF;
background: #000;
border-style:solid;
border-color:#CCC;
border-width: 0 0 0 1px;
box-shadow: 2px 2px 2px #555, inset 0 25px 20px -10px rgba(255, 255, 255, 0.3),
inset 0 -15px 20px -10px rgba(0, 0, 0, 0.15);
-moz-box-shadow: 2px 2px 2px #555, inset 0 25px 20px -10px rgba(255, 255, 255, 0.3),
inset 0 -15px 20px -10px rgba(0, 0, 0, 0.15);
-o-box-shadow: 2px 2px 2px #555, inset 0 25px 20px -10px rgba(255, 255, 255, 0.3),
inset 0 -15px 20px -10px rgba(0, 0, 0, 0.15);
-webkit-box-shadow: 2px 2px 2px #555,
inset 0 25px 20px -10px rgba(255, 255, 255, 0.3),
inset 0 -15px 20px -10px rgba(0, 0, 0, 0.15);
-moz-transition: background-color .5s ease;
-o-transition: background-color .5s ease;
-webkit-transition: background-color .5s ease-in-out;
transition: background-color .5s ease;
}
Followed by:
c:hover {
color:#FFF;
background: #505;
position:relative;
top:1px;
box-shadow: -1px -1px -1px #555,inset 0 20px 20px -10px rgba(0, 0, 0, 0.15),
inset 0 -15px 20px -10px rgba(255, 255, 255, 0.3);
-moz-box-shadow: -1px -1px -1px #555,inset 0 20px 20px -10px rgba(0, 0, 0, 0.15),
inset 0 -15px 20px -10px rgba(255, 255, 255, 0.3);
-o-box-shadow: -1px -1px -1px #555, inset 0 20px 20px -10px rgba(0, 0, 0, 0.15),
inset 0 -15px 20px -10px rgba(255, 255, 255, 0.3);
-webkit-box-shadow: 1px -1px -1px #555, inset 0 20px 20px -10px rgba(0, 0, 0, 0.15),
inset 0 -15px 20px -10px rgba(255, 255, 255, 0.3);
}
Here, you are essentially using an inset shadow as a Photoshop-like mask, causing a gradient effect on the underlying element. On hover, you invert the effect.

Answer 5

If you're doing the slight highlight when hovering the button there is a much simpler solution. You can just nudge the gradient down a bit and have the background-color be the same as the top color of your gradient: http://cdpn.io/oaByI
It's pretty limited I know, but if works well for that use case.

Answer 6

I know this question is pretty old, but I found a good way to animate basic gradients that will work in some cases.
This method will let you animate a change in color of the gradient but not a change in the position of the color stops.
https://jsfiddle.net/62vzydeh/
HTML:
<div class="button">
Click Me!
</div>
CSS:
.button {
width: 200px;
height: 30px;
margin: 50px;
padding-top: 10px;
color: #C0C0C0;
background: linear-gradient(to left, #F8F8F8, transparent 30%);
background-color: #808080;
text-align: center;
font-family: sans-serif;
cursor: pointer;
transition: background-color 500ms;
}
.button:hover {
background-color: #A0A0A0;
}

Answer 7

a hacky way i tried was putting lots of <spans> to replicate "position", CSS only hack here: https://codepen.io/philipphilip/pen/OvXEaV

Answer 8

9 years, but this time, hope my styled-components can help someone:
import React, { ReactNode } from 'react'
import { Button as ButtonUI } from "#your-library-ui"
import styled from 'styled-components'
type Props = {
onClick?: () => void;
children?: ReactNode;
};
const Button = ({onClick, children}: Props) => (
<StyledButton onClick={onClick} >
{children}
<ButtonHelper />
</StyledButton>
)
export default Button
const ButtonHelper = styled.span`
position: absolute;
z-index: -1;
top: 0;
left: 0;
width: 100%;
height: 100%;
opacity: 0;
border-radius: 5px;
background: linear-gradient(to right, #5ab0f4, #1273ea)!important;
transition: opacity 0.2s linear;
`;
const StyledButton = styled(ButtonUI)`
position: relative;
z-index: 1;
background: linear-gradient(to right, #1273ea, #1c94f4)!important;
color: #fff;
&:hover ${ButtonHelper} {
opacity: 1;
}
`;
And start using your new designed component with extra effect! Thanks to #kizu for the suggestion.

Answer 9

you must have same style in source and changed style in target.
like
a {
background: transparent;
background: linear-gradient(transparent,transparent);
-moz-transition: all 0.3s ease;
-o-transition: all 0.3s ease;
-webkit-transition: all 0.3s ease;
transition: all 0.3s ease;
}
a:hover
{
background: #abc07c;
background: linear-gradient(#c5db95,#88a743);
}