body {background-color: #00FF00;}
#tr1_td1 {background-color: #00FFFF;}
#table1 {width: 100%;}
#table2 {width: 10%;}

#td_forma {padding-left: 0.3em; padding-top: 2em; vertical-align: top;}

#input_text1, #input_text3 {min-width: 2em; width: 100%; font-size: 2em; text-align: center;}
#input_text2, #input_text4 {min-width: 2em; width: 100%; font-size: 2em; text-align: center;}

#td_input_text2, #td_input_text4 {border-top: 5px solid black;}

#input_button1 {font-size:1.1em; cursor: pointer;}

#znak_ravno {font-size: 2em;}

#tb_1, #tb_2 {border-collapse: collapse;}

#tb_1 td:nth-child(odd), #tb_2 td:nth-child(odd) {border-right: 3px solid black;}

#rez5 {text-align: justify; padding: 1em; text-indent: 2em;}

#podskazka {font-size: 1.2em; color: red;}