body, html {
    margin: 0;
    padding: 0;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #f0f0f0;
    color: #333333;
    font-family: 'Courier New', Courier, monospace;
    overflow: hidden;
}

.container {
    text-align: center;
    font-size: 5em;
}

.typing-animation {
    display: inline-block;
    white-space: nowrap;
    overflow: hidden;
    border-right: 0.1em solid #333333; /* 光标样式 */
    box-sizing: border-box;
}