body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background: linear-gradient(to bottom, #1e3c72, #2a5298);
    font-family: Arial, sans-serif;
}

.tree-container {
    position: relative;
    width: 150px;
}

.star {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 0;
    border-left: 15px solid transparent;
    border-right: 15px solid transparent;
    border-bottom: 25px solid yellow;
}

.star::before {
    content: '';
    position: absolute;
    top: 10px;
    left: -15px;
    width: 0;
    height: 0;
    border-left: 15px solid transparent;
    border-right: 15px solid transparent;
    border-top: 25px solid yellow;
}

.tree {
    position: relative;
    width: 0;
    margin-top: 40px;
}

.layer {
    width: 0;
    height: 0;
    border-left: 75px solid transparent;
    border-right: 75px solid transparent;
    border-bottom: 50px solid green;
    margin: -15px auto 0;
}

.layer:first-child {
    border-bottom-color: #006400;
}

.ornament {
    position: absolute;
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.ornament.red {
    background-color: red;
    top: 60px;
    left: 40%;
}

.ornament.blue {
    background-color: blue;
    top: 90px;
    left: 60%;
}

.ornament.yellow {
    background-color: yellow;
    top: 120px;
    left: 50%;
}

.trunk {
    width: 30px;
    height: 50px;
    background-color: #8B4513;
    margin: 0 auto;
    border-radius: 5px;
    position: relative;
    top: -10px;
}