弄个知乎的粒子动态背景_实践particles.js

<div id="particles"></div>
<style type="text/css">
    #particles {
        position: absolute;
        top: 0;
        width: 100%;
        z-index: -1;   //这个z-index 要是不设置 会对登录表单的点击产生干扰，会去抢风头，不好好做一个安静的背景。
        background-color: #26AFE3;
    }
</style>

<script type="text/javascript">
//    particlesJS.load(‘particles‘, ‘./js/app/particles.json‘, function() {
//        console.log(‘callback - particles.js config loaded‘);
//    });

particlesJS("particles", {
    "particles": {
        "number": {
            "value": 30,
            "density": {
                "enable": true,
                "value_area": 800
            }
        },
        "color": {
            "value": "#ffffff"
        },
        "shape": {
            "type": "circle",
            "stroke": {
                "width": 0,
                "color": "#000000"
            },
            "polygon": {
                "nb_sides": 5
            },
            "image": {
                "src": "img/github.svg",
                "width": 100,
                "height": 100
            }
        },
        "opacity": {
            "value": 0.5,
            "random": false,
            "anim": {
                "enable": false,
                "speed": 1,
                "opacity_min": 0.1,
                "sync": false
            }
        },
        "size": {
            "value": 10,
            "random": true,
            "anim": {
                "enable": false,
                "speed": 50,
                "size_min": 0.1,
                "sync": false
            }
        },
        "line_linked": {
            "enable": true,
            "distance": 300,
            "color": "#ffffff",
            "opacity": 0.4,
            "width": 2
        },
        "move": {
            "enable": true,
            "speed": 8,
            "direction": "none",
            "random": false,
            "straight": false,
            "out_mode": "out",
            "bounce": false,
            "attract": {
                "enable": false,
                "rotateX": 600,
                "rotateY": 1200
            }
        }
    },
    "interactivity": {
        "detect_on": "canvas",
        "events": {
            "onhover": {
                "enable": false,
                "mode": "repulse"
            },
            "onclick": {
                "enable": false,
                "mode": "push"
            },
            "resize": true
        },
        "modes": {
            "grab": {
                "distance": 800,
                "line_linked": {
                    "opacity": 1
                }
            },
            "bubble": {
                "distance": 800,
                "size": 80,
                "duration": 2,
                "opacity": 0.8,
                "speed": 3
            },
            "repulse": {
                "distance": 400,
                "duration": 0.4
            },
            "push": {
                "particles_nb": 4
            },
            "remove": {
                "particles_nb": 2
            }
        }
    },
    "retina_detect": true
});
</script>