/*space inserts*/
.block30pxh{height:30px;}
.block20pxh{height:20px;}
.block17pxh{height:17px;}
.block10pxh{height:10px;}
.block08pxh{height:8px;}
.block06pxh{height:6px;}
.block04pxh{height:4px;}

/*common paddings*/
.padding_top_0{padding-top:0;}
.padding_top_4{padding-top:4px;}
.padding_top_8{padding-top:8px;}
.padding_bottom_0{padding-bottom: 0px;}
.padding_lr_15{padding-left:15px;padding-right:15px;}

/*common margins*/
.margin_top_0{margin-top:0;}
.margin_top_1_4_em{margin-top:1.4em;}
.margin_top_1_3_em{margin-top:1.3em;}
.margin_top_0_8_em{margin-top:0.8em;}
.margin_top_20{margin-top:20px;}
.margin_top_15{margin-top:15px;}
.margin_top_10{margin-top:10px;}
.margin_top_5{margin-top:5px;}
.margin_top_4{margin-top:4px;}
.margin_bottom_0{margin-bottom:0;}
.margin_bottom_1_4_em{margin-bottom:1.4em;}
.margin_bottom_1_3_em{margin-bottom:1.3em;}
.margin_bottom_0_8_em{margin-bottom:0.8em;}
.margin_bottom_20{margin-bottom:20px;}
.margin_bottom_15{margin-bottom:15px;}
.margin_bottom_10{margin-bottom:10px;}
.margin_bottom_8{margin-bottom:8px;}
.margin_bottom_5{margin-bottom:5px;}

/*other*/
.box_sizing{-moz-box-sizing:border-box;-webkit-box-sizing:border-box;box-sizing:border-box;}
.float_left{float:left;}
.float_right{float:right;}
.hidden_elements{display:none;}
.no_display{display:none;}
.clear_both{clear:both;}
.text_left{text-align:left;}
.text_right{text-align:right;}
.no_margin{margin:0;}
.no_padding{padding:0;}
.bold_font{font-weight: bold;}
.georgia_font{font-family: Georgia, Arial, Verdana, sans-serif;}
.georgia_font_s{font-family: Georgia, Arial, Verdana, serif;}
.arial_font{font-family: arial, verdana, sans-serif;}
.verdana_font{font-family: Verdana, Arial, Helvetica, sans-serif;}
.helvetica_font{font-family:helvetica,verdana,arial,sans-serif;}
.resvert{resize:vertical;}