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Cara membuat animasi kecerunan menggunakan CSS
P粉909476457
P粉909476457 2023-09-18 09:47:10
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Saya mahu mengalihkan kecerunan saya dengan pelbagai warna dengan lancar, tetapi masalahnya ialah animasi tidak lancar. Ia hanya menukar kedudukan pada setiap langkah. 

<style>
  .animated {
    width: 300px;
    height: 300px;
    border: 1px solid black;
    animation: gra 5s infinite;
    animation-direction: reverse;
    -webkit-animation: gra 5s infinite;
    -webkit-animation-direction: reverse;
    animation-timing-function: linear;
    -webkit-animation-timing-function: linear;
  }
  
  @keyframes gra {
    0% {
      background: -webkit-gradient(linear, left top, right bottom, color-stop(0%, #ff670f), color-stop(21%, #ff670f), color-stop(56%, #ffffff), color-stop(88%, #0eea57));
      background: -webkit-linear-gradient(-45deg, #ff670f 0%, #ff670f 21%, #ffffff 56%, #0eea57 88%);
      background: linear-gradient(135deg, #ff670f 0%, #ff670f 21%, #ffffff 56%, #0eea57 88%);
    }
    50% {
      background: -webkit-gradient(linear, left top, right bottom, color-stop(0%, #ff670f), color-stop(10%, #ff670f), color-stop(40%, #ffffff), color-stop(60%, #0eea57));
      background: -webkit-linear-gradient(-45deg, #ff670f 0%, #ff670f 10%, #ffffff 40%, #0eea57 60%);
      background: linear-gradient(135deg, #ff670f 0%, #ff670f 10%, #ffffff 40%, #0eea57 60%);
    }
    100% {
      background: -webkit-gradient(linear, left top, right bottom, color-stop(0%, #ff670f), color-stop(5%, #ff670f), color-stop(10%, #ffffff), color-stop(40%, #0eea57));
      background: -webkit-linear-gradient(-45deg, #ff670f 0%, #ff670f 5%, #ffffff 10%, #0eea57 40%);
      background: linear-gradient(135deg, #ff670f 0%, #ff670f 5%, #ffffff 10%, #0eea57 40%);
    }
  }
</style>
<div class="animated">
  <h1>你好</h1>
</div>

Adakah mungkin untuk mencapai ini tanpa menggunakan jQuery?

Pautan jsfiddle saya ialah https://jsfiddle.net/bAUK6

P粉909476457
P粉909476457

membalas semua(2)
P粉308089080
P粉3080890802023-09-19 00:57:19 Tingkat 2

Pelaksanaan dinamikJawapan Dave:

:root{
    --overlay-color-1: #ff0000;
    --overlay-color-2: #0000ff;
    --anim-duration: 2s;
}

#gradient {
    opacity: 0.8;
    background: none;
}

#gradient:after,
#gradient:before {
    content: '';
    display: block;
    position: absolute;
    top: 0; bottom: 0; left: 0; right: 0;
}

#gradient:before {
    background: linear-gradient(135deg, var(--overlay-color-2) 0%, var(--overlay-color-1) 100%);
    animation: OpacityAnim var(--anim-duration) ease-in-out 0s infinite alternate;
}

#gradient:after {
    background: linear-gradient(135deg, var(--overlay-color-1) 0%, var(--overlay-color-2) 100%);
    animation: OpacityAnim var(--anim-duration) ease-in-out calc(-1 * var(--anim-duration)) infinite alternate;
}

@keyframes OpacityAnim {
    0%{opacity: 1.0}
    100%{opacity: 0.0}
}
<div id="gradient"></div>
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P粉785905797
P粉7859057972023-09-19 00:05:38 Tingkat 1

Sila cuba kod berikut: 

#gradient
{
    height:300px;
    width:300px;
    border:1px solid black;
    font-size:30px;
    background: linear-gradient(130deg, #ff7e00, #ffffff, #5cff00);
    background-size: 200% 200%;

    -webkit-animation: Animation 5s ease infinite;
    -moz-animation: Animation 5s ease infinite;
    animation: Animation 5s ease infinite;
}

@-webkit-keyframes Animation {
    0%{background-position:10% 0%}
    50%{background-position:91% 100%}
    100%{background-position:10% 0%}
}
@-moz-keyframes Animation {
    0%{background-position:10% 0%}
    50%{background-position:91% 100%}
    100%{background-position:10% 0%}
}
@keyframes Animation { 
    0%{background-position:10% 0%}
    50%{background-position:91% 100%}
    100%{background-position:10% 0%}
}
<html>
<div id="gradient">
  Hello
</div>
</html>
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