#btn_home, #btn_contact {
    float: right;
    margin-top: 30px;
    margin-right: 30px;
    cursor: pointer;
}

.model_button {
    width: 105px;
    height: 85px;
    /*border:1px #ccc solid;*/
    float: left;
    cursor: pointer;
    margin: 20px 0 0 10px;
    
    overflow: hidden;
}

    .model_button img {
        background-color: #ddd;
        width:105px;
    }

.titolo_thumb {
    font-size: 10px;
    margin-top: -2px;
}

.viewer_menu_item {
    cursor: pointer;
    width: 50px;
    height: 50px;
    float:left;
    margin-right:50px;
}

    .viewer_menu_item img {
        width: 50px;
        height: 50px;
    }

.viewer_menu_item2 {
    cursor: pointer;
    width: 35px;
    height: 35px;
    margin-top: 8px;
    margin-left: 5px;
    float: left;
}

    .viewer_menu_item2 img {
        width: 35px;
        height: 35px;
    }

@media screen and (max-width: 810px)
{
    #viewer_menu {
        margin-top:20px;
    }
    .viewer_menu_item {
        width: 32px;
        height: 32px;
        margin-right: 20px;
    }

        .viewer_menu_item img {
            width: 32px;
            height: 32px;
        }

    .viewer_menu_item2 {
        width: 25px;
        height: 25px;
        margin-top: 4px;
    }

        .viewer_menu_item2 img {
            width: 25px;
            height: 25px;
        }
}




.viewer_menu_item3 {
    cursor: pointer;
    width: 35px;
    height: 35px;
    margin-top: 8px;
}

    .viewer_menu_item3 img {
        width: 35px;
        height: 35px;
    }

.btn_material {
    width: 40px;
    height: 40px;
    border-radius: 20px;
    float: left;
    margin-bottom: 20px;
    border:1px #ccc solid;
}

.btn_node {
    width: 100px;
    height: 100px;
    float: left;
    margin-bottom: 20px;
}

.dlg_save_btn {
    color: #fff;
    background-color: #707070;
    font-family: Montserrat-sb, sans-serif;
    width: 100px;
    padding: 5px;
    border-radius: 5px;
    margin: 0 auto;
    cursor: pointer;
}