html {overflow-y: scroll;}

/* obecne */
.clear {clear:both;}
.img-no-border {border:0;}
.text-block {text-align:justify;}

/* zarovnani pisma */
.stred {text-align:center;}
.vpravo {text-align:right;}
.vlevo {text-align:left;}
.blok {text-align:justify;}


/* barvy */
.red {color:red;}
.black {color:black;}
.gray {color:gray;}
.bold {font-weight:bold;}

/* pismo-velikost */
.text09 {font-size:9px;}
.text10 {font-size:10px;}
.text11 {font-size:11px;}
.text12 {font-size:12px;}
.text13 {font-size:13px;}
.text14 {font-size:14px;}
.text16 {font-size:16px;}
.text18 {font-size:18px;}

/* marginy */
.top10 {margin-top:10px;}
.top20 {margin-top:20px;}
.top30 {margin-top:30px;}
.top50 {margin-top:50px;}

.bottom10 {margin-bottom:10px;}
.bottom20 {margin-bottom:20px;}
.bottom30 {margin-bottom:30px;}
.bottom50 {margin-bottom:50px;}

.left30 {margin-left:30px;}

/* width */
.w10 {width:10px;}