@media screen and (max-width:720px) {#header{margin-top: 2%;flex-direction: column;text-align: center;}#header>a>img{height: 40px;}.header_contacts{font-size: 1em;font-family: monospace;margin: auto 0;}#header_nav{flex-grow: 1;margin: auto;margin-top: 4%;font-size: 1.1em;flex-direction: column;text-align: center;}.first_screen{margin: 2% 0;padding: 0;}ul{list-style: none;}.first_screen_ul{width: 100%;font-family: sans-serif;font-size: 1.8em;}.first_screen_ul>li{width: auto;margin: 7% 0;}.second_screen{flex-direction: column;}.second_screen_item{font-size: 1.3em;}.anketa>a>p{font-weight: 700;padding: 0 2%;}.download{font-size: 1.7em;}.download2{font-size: 0.9em;}.third_screen_item {flex-direction: column;align-items: center;}.third_screen_item>p {padding: 1% 3%;font-size: 1em;font-family: sans-serif;width: 100%;}#parthers {flex-direction: column;align-content: center;}#parthers>div{margin: auto;}#parthers>div>img{width: 100%;}.question_ans>p {font-size: 1em;}#project{width: 100%;min-height: 0;}}