.calendar {
    width: 40px;
    height: 40px;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    transition: transform 0.3s ease;
    background-image: url(data:image/svg+xml;base64,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);
}

.calendar:hover {
    transform: scale(1.2); /* Aumenta un 20% */
}