.m_center {margin:0 auto;}
.m_clear {margin:0px;}
.m_s {margin:10px;}
.m_m {margin:30px;}
.m_l {margin:50px;}


.p_clear {padding:0px;}
.p_s {padding:10px;}
.p_m {padding:30px;}
.p_l {padding:50px;}


.mt_s {margin-top:10px;}
.mt_m {margin-top:30px;}
.mt_l {margin-top:50px;}
.ml_s {margin-left:10px;}
.ml_m {margin-left:30px;}
.ml_l {margin-left:50px;}
.mr_s {margin-right:10px;}
.mr_m {margin-right:30px;}
.mr_l {margin-right:50px;}
.mb_s {margin-bottom:10px;}
.mb_m {margin-bottom:30px;}
.mb_l {margin-bottom:50px;}


.pt_s {padding-top:10px;}
.pt_m {padding-top:30px;}
.pt_l {padding-top:50px;}
.pl_s {padding-left:10px;}
.pl_m {padding-left:30px;}
.pl_l {padding-left:50px;}
.pr_s {padding-right:10px;}
.pr_m {padding-right:30px;}
.pr_l {padding-right:50px;}
.pb_s {padding-bottom:10px;}
.pb_m {padding-bottom:30px;}
.pb_l {padding-bottom:50px;}


.w_100 {width:100%;}
.wmin_100 {min-width:100%;}
.wmax_100 {max-width:100%;}
.h_100 {height:100%;}
.hmin_100 {min-height:100%;}
.hmax_100 {max-height:100%;}


.ta_c {text-align:center;}
.ta_l {text-align:left;}
.ta_r {text-align:right;}