.vtr-icon,
.vtr-icon-on {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    min-width: 72px;
    margin: 6px 6px;
    font-size: 40px;
    line-height: 1;
    color: #8A9EA7;
    background-color: transparent;
    cursor: pointer;
    vertical-align: top;
    /* bordo sempre presente: trasparente da spento, colorato da acceso */
    border: 3px solid transparent;
    border-radius: 5px;
}

    .vtr-icon:hover {
        color: #8A9EA7;
        border-color: transparent;
    }

.vtr-icon-on {
    border-color: #8A9EA7; /* unica differenza tra on e off*/
}

    .vtr-icon-on:hover {
        color: #6995bf;
        border-color: #6995bf;
    }


.vtr-obj-icon,
.vtr-obj-icon-on {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    min-width: 72px;
    margin: 6px 6px;
    font-size: 40px;
    line-height: 1;
    color: #8A9EA7;
    background-color: transparent;
    cursor: pointer;
    vertical-align: top;
    border: 3px solid transparent;
    border-radius: 5px;
    padding: 4px 4px 6px 4px;
}

.vtr-obj-icon-on {
    border-color: #8A9EA7;
}

.vtr-subobj-icon,
.vtr-subobj-icon-on {
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    min-width: 32px;
    font-size: 14px;
    color: #8A9EA7;
    background-color: transparent;
    cursor: pointer;
    vertical-align: top;
    border: 3px solid transparent;
    border-radius: 5px;
}

.vtr-subobj-icon-on {
    border-color: #8A9EA7;
}

.vtr-obj-label {
    margin-top: 6px;
    font-family: Arial, sans-serif;
    font-size: 12px;
    line-height: 1.2;
    text-align: center;
    color: #444;
    max-width: 90px;
    font-weight: 100;
    white-space: normal;
}