  color: #fff; 
                text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25); 
                background-color: #212529; 
                border: 1px solid #4c4f53; 
                border-radius: 0.2rem; 
                box-shadow: inset 0 -1px 0 rgba(0, 0, 0, 0.25); 
            }
            :root {
              --content-max-width: 500px;
            }
        </style>
        
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