使用背景大小自动调整大小

Question

我想在我的身体上添加一个具有自动背景大小的背景图像。

问题是我的图像在没有我要求的情况下就被调整了大小。我的图像的宽度是2501px，它的大小调整了640px的宽度。

我看到了一个背景大小为 auto 的背景示例，其图像为 1440px witdh，并且未调整大小。

现在，这是我的 CSS :

* {
    margin: 0;
    padding: 0;
  }

body,html {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;

    background-color: #272727;
    color: #fff;
    background-image: url("https://i.ibb.co/t4JgQsP/Background-large.png");
    /* background-size: cover; */
    background-size: auto;
    background-position: top center;
    background-repeat: no-repeat;
 }

.test {
    width: 200px; /* Set a specific width for the element */
    text-align: center;
    color: aliceblue;
    font-size: 2rem;
}

.child.one {
    color:aquamarine;

}

#astro {
    padding-top: 8608px;
    padding-right: 30px;
    max-height: 67%;
    /* opacity: 40%; */
  
    filter: drop-shadow(0 0 5px cyan);
    
    animation-duration: 3s;
    animation-timing-function: ease-in-out;
    animation-name: respiration;
    animation-iteration-count: infinite;
  }
  
  @keyframes respiration {
    from {
      filter: drop-shadow(0 0 5px cyan);
    }
    
    50% {
      filter: drop-shadow(0 0 25px cyan);
    }
  
    to {
      filter: drop-shadow(0 0 5px cyan);
    }
  }

Answer 1

* {
    margin: 0;
    padding: 0;
}

body, html {
    height: 100%;
}

body {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center; /* Center content vertically */
    background-color: #272727;
    color: #fff;
    background-image: url("https://i.ibb.co/t4JgQsP/Background-large.png");
    background-size: auto; /* Maintain original size */
    background-position: center center; /* Center the background image */
    background-repeat: no-repeat;
}

.test {
    width: 200px; /* Set a specific width for the element */
    text-align: center;
    color: aliceblue;
    font-size: 2rem;
}

.child.one {
    color: aquamarine;
}

#astro {
    padding-top: 860px; /* Adjust padding as needed */
    max-height: 67%;
    filter: drop-shadow(0 0 5px cyan);
    animation-duration: 3s;
    animation-timing-function: ease-in-out;
    animation-name: respiration;
    animation-iteration-count: infinite;
}

@keyframes respiration {
    from {
        filter: drop-shadow(0 0 5px cyan);
    }
    50% {
        filter: drop-shadow(0 0 25px cyan);
    }
    to {
        filter: drop-shadow(0 0 5px cyan);
    }
}