#content{
    grid-template-rows: 5em 2.5em auto 20vh;
}

main{
    display:block;
}
main h3{  
    background-color: #4e4e4e; color:white; line-height: 2em; font-size:130%; text-align:left; 
    padding-left:2em; margin-top: .5em;
}
main section{
    background:white; color:#4e4e4e;
    padding:1em; line-height:1.4em; font-size:120%;
    text-align: justify;
}
main address{
    font-size:130%; line-height:1.3em;
}
@media screen and (max-width:700px){
    #content {   grid-template-rows: 5em auto auto 20vh; }
}