html, body {
    width: 100%;
    height: 100%;
    margin: 0;
    padding: 0;
    /*overflow: hidden;*/
}
.action_form{
    position:absolute;
    width:200px;
    height:200px;
    left:50%;
    top:50%;
    margin-left:-100px;
    margin-top:-100px;
    border:0px solid
}
/*form{padding:14px}*/
/*tr:hover {*/
    /*background-color: whitesmoke;*/
/*}*/

tr:hover td {
    background-color: whitesmoke; /* or #000 */
}
TABLE {
    border: 1px black solid;
    border-collapse: collapse;
    cursor: default;
    /*width: 50%; !* Ширина таблицы *!*/
    /*height: 50%; !* Высота таблицы *!*/
}
THEAD, TBODY, th, td {
    border: 1px gray solid;
}


/*table.table_border table, thead, tbody, th, td, tr{*/
    /*border: 1px gray solid;*/
    /*border-collapse: collapse;*/
/*}*/
/*.table_border th, td{*/
    /*text-align: center;*/
/*}*/

/*.table_border tr:hover td{*/
    /*background-color: red; !* or #000 *!*/
/*}*/
/*table.table_no_border table, thead, tbody, th, td, tr{*/
    /*border: none;*/
    /*border-collapse: collapse;*/
/*}*/
.parent{
    width: 100%;
    /*height: 100%;*/
    /*position: fixed;*/
    top: 0;
    /*left: 0;*/
    /*display: flex;*/
    /*align-items: center;*/
    /*justify-content: center;*/
    /*overflow: auto;*/
}
.left {
    position: absolute;
    left: 0;
    /*top: 60px;*/
    width: 50%;
    /*margin-left: auto;*/
    /*margin-right: auto;*/
    /*border: 2px double red;*/

}
.right {
    position: absolute;
    right: 0;
    /*top: 60px;*/
    width: 50%;
    /*margin-left: auto;*/
    /*margin-right: auto;*/
    /*border: 2px double blue;*/
}
.top_menu {
    /*display: block;*/
    /*border: 2px double red;*/
    /*alignment: center;*/
    margin-left: auto;
    margin-right: auto;
    /*position: absolute;*/
    /*top: 0;*/
    width: 50%;
    /*left: 25%;*/
    /*right: 25%;*/
    /*height: 20px;*/
}
.center_content {

}