admin/view/javascript/d_fileinput/fileinput.css

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/*!
 * @copyright Copyright © Kartik Visweswaran, Krajee.com, 2014 - 2015
 * @package bootstrap-fileinput
 * @version 4.3.1
 *
 * File input styling for Bootstrap 3.0
 * Built for Yii Framework 2.0
 * Author: Kartik Visweswaran
 * Year: 2015
 * For more Yii related demos visit http://demos.krajee.com
 */
.file-loading {
    top: 0;
    right: 0;
    width: 25px;
    height: 25px;
    font-size: 999px;
    text-align: right;
    color: #fff;
    background: transparent url('img/loading.gif') top left no-repeat;
    border: none;
}

.file-object {
    margin: 0 0 -5px 0;
    padding: 0;
}

.btn-file {
    position: relative;
    overflow: hidden;
}

.btn-file input[type=file] {
    position: absolute;
    top: 0;
    right: 0;
    min-width: 100%;
    min-height: 100%;
    text-align: right;
    opacity: 0;
    background: none repeat scroll 0 0 transparent;
    cursor: inherit;
    display: block;
}

.file-caption-name {
    display: inline-block;
    overflow: hidden;
    height: 20px;
    word-break: break-all;
}

.input-group-lg .file-caption-name {
    height: 25px;
}

.file-preview-detail-modal {
    text-align: left;
}