.floraPlus, .floraMoins {
    display: inline-block;
    width: 24px;
    height: 24px;
    background-size: 24px 24px;
    background-repeat: no-repeat;
    background-position: center;
}

/* Icône + */
.floraPlus {
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='24' height='24' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round'><path d='M12 5v14M5 12h14'/></svg>");
}

/* Icône – */
.floraMoins {
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='24' height='24' fill='none' stroke='%23000' stroke-width='2' stroke-linecap='round'><path d='M5 12h14'/></svg>");
}