.notice {
    color: black;
    background: #00d9ff;
    padding: 2em;
    border: 0.3em solid #01a9c7;
    position: relative;
    overflow: clip;
}

.notice::before {
    color: #01a9c7;
    content: 'Notice';
    position: absolute;
    top: 0.3em;
    left: 0.3em;
    font-weight: bold;
}
