body{
    box-sizing:border-box
}

body{
    padding:0px;
    margin:0px;

}

.nav{

border: 1px solid red;
display: flex;
flex-direction: row-reverse;


}

@media (max-width: 768px) {
  img[alt="Vaccine"] {
    width: 100%;
    height: auto;
  }
}


#main{

    
    margin: auto;
    align-items: center;
    display: flex;
    justify-content: center;
    align-items: center;
    width: 80%;
}

#main div{
    
    
}
#imgtag{

    width: 49%;
}