.bg-particles {
    z-index: -1;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.bg-particles li {
    position: fixed;
    display: block;
    list-style: none;
    width: 30px;
    height: 30px;
    background: rgba(255, 255, 255, 0.247);
    animation: particle-animation 25s linear infinite;
    bottom: -150px;
    /*border-radius: 100%;*/
}

.bg-particles li:nth-child(1) {
    left: 25%;
    /*width: 80px;*/
    /*height: 80px;*/
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 0 40px 69.3px 40px;
    border-color: transparent transparent rgba(255, 255, 255, 0.247) transparent;
    background: none;
    animation-delay: 0s;
}

.bg-particles li:nth-child(2) {
    left: 10%;
    width: 50px;
    height: 50px;
    animation-delay: 2s;
    animation-duration: 12s;
}

.bg-particles li:nth-child(3) {
    left: 70%;
    width: 20px;
    height: 20px;
    animation-delay: 4s;
}

.bg-particles li:nth-child(4) {
    left: 40%;
    width: 60px;
    height: 60px;
    animation-delay: 0s;
    animation-duration: 18s;
}

.bg-particles li:nth-child(5) {
    left: 65%;
    width: 70px;
    height: 70px;
    animation-delay: 0s;
}

.bg-particles li:nth-child(6) {
    left: 75%;
    width: 110px;
    height: 110px;
    background: rgba(255, 255, 255, 0.12);
    animation-delay: 3s;
}

.bg-particles li:nth-child(7) {
    left: 35%;
    width: 150px;
    height: 150px;
    background: rgba(255, 255, 255, 0.15);
    animation-delay: 7s;
}

.bg-particles li:nth-child(8) {
    left: 50%;
    width: 80px;
    height: 80px;
    animation-delay: 15s;
    animation-duration: 45s;
}

.bg-particles li:nth-child(9) {
    left: 20%;
    width: 15px;
    height: 15px;
    animation-delay: 2s;
    animation-duration: 35s;
}

.bg-particles li:nth-child(10) {
    left: 15%;
    /*width: 150px;*/
    /*height: 150px;*/
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 0 100px 173.2px 100px;
    border-color: transparent transparent rgba(255, 255, 255, 0.15) transparent;
    background: none;
    animation: particle-animation2 linear infinite;
    animation-delay: 0s;
    animation-duration: 20s;
}

.bg-particles li:nth-child(10)::before {
    content: '';
    display: block;
    border: solid 10px rgba(255, 255, 255, 0.15);
    border-radius: 50%;
    width: 290px;
    height: 290px;
    top: -29px;
    position: absolute;
    left: -142px;
}

@keyframes particle-animation {
    10% {
        transform: translateY(0) rotate(0deg);
        opacity: 1;
    }

    100% {
        transform: translateY(-1000px) rotate(720deg);
        opacity: 0;
    }
}

@keyframes particle-animation2 {
    10% {
        transform: translateY(0) rotate(90deg);
        opacity: 1;
    }

    100% {
        transform: translateY(-1000px) rotate(90deg);
        opacity: 0;
    }
}

@media (max-width: 464px) {
    .bg-particles li {
        /*transform: scale(0.5);*/
    }
}