背景代码几则

图片背景

<style>
body {
background: url(https://imgapi.cn/api.php)
}
</style>

渐变背景CSS

<!-- head -->
<style>
/*渐变背景CSS */
#canvas-basic {
    position: fixed;
    display: block;
    width: 100%;
    height: 100%;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    z-index: -999;
}
</style>


<!-- body -->

<!-- 渐变背景初始化 -->
<canvas id="canvas-basic"></canvas> 
<script src="https://npm.elemecdn.com/granim@2.0.0/dist/granim.min.js"></script>
<script>
var granimInstance = new Granim({
    element: '#canvas-basic',
    direction: 'left-right',
    isPausedWhenNotInView: true,
    states : {
        "default-state": {
            gradients: [
                ['#a18cd1', '#fbc2eb'],
                 ['#fff1eb', '#ace0f9'],
                 ['#d4fc79', '#96e6a1'],
                 ['#a1c4fd', '#c2e9fb'],
                 ['#a8edea', '#fed6e3'],
                 ['#9890e3', '#b1f4cf'],
                 ['#a1c4fd', '#c2e9fb'],
                 ['#fff1eb', '#ace0f9']
           
            ]
        }
    }
});
</script>