.captcha_table {
    background: #111;
    border: 1px solid #000;
    width: 100%;
}
.captcha_table td {
    padding: 5px;
}
.captcha_table td .form-control {
    height: 40px;
}
.captcha_table td .btn {
    padding: 9px 12px;
}



SELECT tbl_category_specification.*,tbl_product_features.* FROM 
tbl_category_specification
LEFT JOIN tbl_product_features
ON tbl_category_specification.category_id=tbl_product_features.category_id and tbl_category_specification.feature_id=tbl_product_features.feature_id
where tbl_product_features.product_id='1'
ORDER BY tbl_category_specification.specification_id