/* 3カラム+マージン(隙間)の合計幅 */
body>div.uk-container.uk-container-center{
width: 1000px; 
}

/* 左カラムの幅 */
body>div.uk-container.uk-container-center>div.uk-grid>div[class*=uk-width-].sidebar.left_side {
width: 220px;
}

/* メインカラムの幅 */
body>div.uk-container.uk-container-center>div.uk-grid>div[class*=uk-width-].sidebar.left_side+.main_content {
width: 520px;
}

/* 右カラムの幅 */
body>div.uk-container.uk-container-center>div.uk-grid>div[class*=uk-width-].sidebar.right_side {
width: 220px;
}

/* テーブル設定 */
.uk-table {
  border-collapse: collapse;
  table-layout: fixed;
}
.uk-table th,
.table td {
  width: 65px;
}