body {
    font-family: 'Montserrat', sans-serif;
}
strong {font-weight: 500;}
nav ul li {margin: 0 10px;}

@media (max-width:428px){
            .header {min-height: auto}
.navbar-light {background: rgba(255, 255, 255, 0.7);}
.descr {margin: 7px;background: rgba(255,255,255,0.5);padding:35px;border-radius: 25px;margin-right:50px;font-size:21px;width:95%;}
nav .navbar-brand {font-size: 17px;}
        }
        @media (min-width:428px) {
            .header {min-height: 750px}
.navbar-light {background: rgba(255, 255, 255, 0.3);}
.descr {margin-top: 150px;background: rgba(255,255,255,0.5);padding:35px;border-radius: 25px;margin-right:50px;font-size:21px;}
        }