html, body{overflow-y: auto; height: 100%; background: white;}
body, div, ul, li, button{font-size: 12px; line-height: 20px; list-style:none; margin: 0; padding: 0; border: 0;}

.white{color: white;}
.red{color: red;}
.blue{color: blue;}
.green{color: green;}
.gray{color: gray;}

.left_float{float: left;}
.right_float{float: right;}
.clear_float{clear: both;}

.left_align{text-align: left;}
.center_align{text-align: center;}
.right_align{text-align: right;}

.show{}
.hide{display: none;}

.margin_5{margin: 5px;}
.margin_10{margin: 10px;}
.margin_0_10{margin: 0 10px;}

.margin_top_5{margin-top: 5px;}
.margin_top_10{margin-top: 10px;}
.margin_top_15{margin-top: 15px;}
.margin_top_20{margin-top: 20px;}

.margin_right_5{margin-right: 5px;}
.margin_right_10{margin-right: 10px;}
.margin_right_15{margin-right: 15px;}
.margin_right_20{margin-right: 20px;}

.margin_bottom_5{margin-bottom: 5px;}
.margin_bottom_10{margin-bottom: 10px;}
.margin_bottom_15{margin-bottom: 15px;}
.margin_bottom_20{margin-bottom: 20px;}

.margin_left_5{margin-left: 5px;}
.margin_left_10{margin-left: 10px;}
.margin_left_15{margin-left: 15px;}
.margin_left_20{margin-left: 20px;}

.padding_5{padding: 5px;}
.padding_10{padding: 10px;}
.padding_0_10{padding: 0 10px;}

.padding_top_5{padding-top: 5px;}
.padding_top_10{padding-top: 10px;}
.padding_top_15{padding-top: 15px;}
.padding_top_20{padding-top: 20px;}

.padding_right_5{padding-right: 5px;}
.padding_right_10{padding-right: 10px;}
.padding_right_15{padding-right: 15px;}
.padding_right_20{padding-right: 20px;}

.padding_bottom_5{padding-bottom: 5px;}
.padding_bottom_10{padding-bottom: 10px;}
.padding_bottom_15{padding-bottom: 15px;}
.padding_bottom_20{padding-bottom: 20px;}

.padding_left_5{padding-left: 5px;}
.padding_left_10{padding-left: 10px;}
.padding_left_15{padding-left: 15px;}
.padding_left_20{padding-left: 20px;}

.width_50{width: 50px;}
.width_100{width: 100px;}
.width_150{width: 150px;}
.width_200{width: 200px;}
.width_250{width: 250px;}
.width_300{width: 300px;}
.width_350{width: 350px;}
.width_400{width: 400px;}
.width_450{width: 450px;}
.width_500{width: 500px;}

.height_50{height: 50px;}
.height_100{height: 100px;}
.height_150{height: 150px;}
.height_200{height: 200px;}
.height_250{height: 250px;}
.height_300{height: 300px;}
.height_350{height: 350px;}
.height_400{height: 400px;}
.height_450{height: 450px;}
.height_500{height: 500px;}

.list_txt{
    color: #000;
}