pre {
        display: block;
        padding: 9.5px;
        margin: 0 0 10px;
        font-size: 13px;
        line-height: 1.42857143;
        color: #333;
        word-break: break-all;
        word-wrap: break-word;
        background-color: #f5f5f5;
        border: 1px solid #ccc;
        border-radius: 4px;
        position: relative;
    }

.pre-copy-btn {
    position: absolute;
    top: 5px;
    right: 5px;
    background-color: #fff;
    border: 1px solid #ccc;
    border-radius: 3px;
    padding: 3px 8px;
    font-size: 12px;
    cursor: pointer;
    z-index: 10;
    opacity: 0.8;
}

.pre-copy-btn:hover {
    background-color: #f0f0f0;
    opacity: 1;
}

.pre-copy-btn.copied {
    background-color: #d4edda;
    border-color: #c3e6cb;
    color: #155724;
}