* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    width: 100%;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #001f00;
}

body::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 250px;
    background: #fff;

}

.tree {
    position: relative;
    width: 400px;
    height: 400px;
}

.tree::before {
    content: '';
    position: absolute;
    bottom: -70px;
    left: 0;
    width: 100%;
    height: 100px;
    border-radius: 50%;
    background: rgba(0, 0, 0,.1);
}

.tree::after {
    content: '';
    position: absolute;
    bottom: -40px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 40px;
    background: #734500;
}

.tree div {
    position: absolute;
    width: 100%;
    height: 200px;
    bottom: 0;
    display: flex;

}

.tree div:nth-child(2) {
    transform: translateY(-100px) scale(0.8);
    z-index: 1;
}
.tree div:nth-child(3) {
    transform: translateY(-175px) scale(0.6);
    z-index: 1;
}
.tree div:nth-child(4) {
    transform: translateY(-240px) scale(0.4);
    z-index: 1;
}
.tree div:nth-child(5) {
    transform: translateY(-280px) scale(0.2);
    z-index: 1;
}

.tree div span {
    position: relative;
    width: 50%;
    height: 100%;
    display: block;
    overflow: hidden;
}

.tree div span:nth-child(1)::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0%;
    width: 200%;
    height: 100%;
    background: linear-gradient(#00b300, #0f0);
    border-top-right-radius: 0% 100%;
    border-top-left-radius: 110% 100%;
    border-bottom-right-radius: 50% 20%;
    border-bottom-left-radius: 50% 20%;

}
.tree div span:nth-child(2)::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 200%;
    height: 100%;
    background: linear-gradient(#00b300, #0f0);
    border-top-left-radius: 0% 100%;
    border-top-right-radius: 110% 100%;
    border-bottom-left-radius: 50% 20%;
    border-bottom-right-radius: 50% 20%;
}

.snow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    overflow: hidden;
}

.snow .snow1 {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url(./snow.png);
    z-index: 1000;
    mix-blend-mode: screen;
    animation: anim 2s linear infinite;
    transform: scale(2);
}
.snow .snow2 {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url(./snow.png);
    z-index: 1000;
    mix-blend-mode: screen;
    animation: anim 5s linear infinite;
    transform: scale(1);
    filter: blur(1px);
}
.snow .snow3 {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: url(./snow.png);
    z-index: 1000;
    mix-blend-mode: screen;
    animation: anim 5s linear infinite;
    transform: scale(1.5);
}

@keyframes anim {
    0% {
        background-position: 0 0;
    }
    100% {
        background-position: 0 506px;
    }
}