.chak_box {
            position: fixed;
            left: 0;
            top: 0;
            background-color: rgba(0,0,0,.818);
            filter:progid:DXImageTransform.Microsoft.gradient(startColorstr=#7f000000,endColorstr=#7f000000); 
            width: 100%;
            height: 100%;
            z-index: 99;
            -moz-user-select: -moz-none;
            -webkit-user-select: none;
            -ms-user-select: none;
            user-select: none;
            display: none
        ;}

        .chak_title {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            text-align: center;
            line-height: 50px;
            color: #fff;
            font-size: 20px
        ;}

        .chak_img {
            position: absolute;
            left: 1%;
            top: 50px;
            right: 10%;
            bottom: 50px;
            margin: auto;
            border: solid 1px rgb(255,255,255);
            border: solid 1px rgba(255,255,255,.25);
            border-radius: 10px;
            overflow: hidden;
            text-align:center;}

        .chak_img>p {
            position: absolute;
            left: 50%;
            top: 50%;
            -ms-transform: translate(-50%,-50%);
            -moz-transform: translate(-50%,-50%);
            -webkit-transform: translate(-50%,-50%);
            -o-transform: translate(-50%,-50%);
            transform: translate(-50%,-50%);
            width: auto;
            padding: 10px 20px;
            background-color: #eee;
            background-color: rgba(0,0,0,.5);
            color: #fff;
            font-size: 20px;
            border-radius: 5px;
            display: none
        ;}
        @media \0screen {       
           .chak_img>p {
              color: #000;
              left: 43%;
              top: 43%;}
        }
        .chak_img img {
            display:inline-block;
            max-width: 1900px;
            max-height: 750px;}

        .chak_btn {
            position: absolute;
            width: 100%;
            height: 100px;
            bottom: 0;
            left: 0;
            text-align: center
        ;}

        .chak_btn>button {
            border: solid 1px #fff;
            color: #fff;
            background-color: rgba(0,0,0,.33);
            border-radius: 5px;
            height: 40px;
            padding: 0 15px;
            font-size: 16px;
            margin: 20px 5px;
            min-width: 50px;
            cursor: pointer
        ;}

        .chak_btn>button:hover {
            background-color: rgba(0,0,0,.66)
        ;}