我有以下代码，它通过id（fixed-back-canvas）将particle.js添加到元素中，但我似乎无法将其设置为选择类而不是id。添加.somediv #fixed-back-canvas而不是fixed-back-canvas似乎不起作用。
有什么想法吗？
particlesJS("fixed-back-canvas", {
"particles": {
"number": {
"value": 60,
"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": 0.3,
"random": true,
"anim": {
"enable": false,
"speed": 1,
"opacity_min": 0.1,
"sync": false
}
},
"size": {
"value": 3,
"random": true,
"anim": {
"enable": false,
"speed": 10,
"size_min": 0.1,
"sync": false
}
},
"line_linked": {
"enable": false,
"distance": 150,
"color": "#ffffff",
"opacity": 0.4,
"width": 1
},
"move": {
"enable": true,
"speed": 2,
"direction": "none",
"random": true,
"straight": false,
"out_mode": "out",
"bounce": false,
"attract": {
"enable": false,
"rotateX": 600,
"rotateY": 1200
}
}
},
"interactivity": {
"detect_on": "canvas",
"events": {
"onhover": {
"enable": true,
"mode": "grab"
},
"onclick": {
"enable": true,
"mode": "push"
},
"resize": true
},
"modes": {
"grab": {
"distance": 140,
"line_linked": {
"opacity": 1
}
},
"bubble": {
"distance": 400,
"size": 40,
"duration": 2,
"opacity": 8,
"speed": 3
},
"repulse": {
"distance": 200,
"duration": 0.4
},
"push": {
"particles_nb": 4
},
"remove": {
"particles_nb": 2
}
}
},
"retina_detect": true
});