newsupernova/vendor/magento/theme-adminhtml-backend/web/css/source/_classes.less

// /**
//  * Copyright © Magento, Inc. All rights reserved.
//  * See COPYING.txt for license details.
//  */

//
//  Helper cross js and styles classes
//  _____________________________________________

//  Can be used for disabled elements, equal disabled='disabled' attribute
._disabled {
    .disabled();
    &:hover {
        .disabled();
    }
}

//  Text align classes
.a-center { // ToDo UI: should be renamed to ._text-center
    text-align: center;
}

//  No select
._no-select {
    -moz-user-select: none;
    -ms-user-select: none;
    -webkit-user-select: none;
    user-select: none;
}

//  Hidden content
.hidden {
    display: none;
    visibility: hidden;
}

//  Display:none content
input.no-display,
.no-display {
    display: none;
}

//  Code samples
.code-sample {
    font-family: monospace, serif;
}