*{
  margin:0;
  padding:0;
}
body{
  margin-left: auto;
  margin-right: auto;
  max-width:900px;
  width:100%;
  margin-top:90px;
}
main{
  width:100%;
  display:flex;
  justify-content:center;
  align-items:center;
  flex-direction:column;
}
main p{
  width:100%;
  max-width:900px;
}
@media(min-width:1100px){
  body{
    margin-top:10px;
  }
}
img{
  width:100%;
  max-width:150px;
  float:right;
}
#comments{
  width:900px;
}
#comments fieldset{
  background:rgba(0,255,0,0.3);
}
@media(max-width:500px){
  img{
    max-width:100%;
  }
}
#messages{
  display:block;
  margin:auto;
}

  #messages .box p div{

    display:block;
  }