body {background: tomato;}

div.first  {text-align: center;}

.streat {padding-top: 2em; padding-bottom: 2em; border: 2px yellow solid; width: 7em; margin: 0 auto;}

div.second {display: flex;}

.left {padding-top: 2em; padding-bottom: 2em; border: 2px yellow solid; width: 7em; margin: 0 auto;}

.gup {padding-top: 2em; padding-bottom: 2em; border: 2px yellow solid; width: 7em; margin: 0 auto;}

.right {padding-top: 2em; padding-bottom: 2em; border: 2px yellow solid; width: 7em; margin: 0 auto;}