h1
{
text-align:center;
}
img{
display: block;
  margin-left: auto;
  margin-right: auto;
  width: 50%;
}
.imgFB{
display: block;
height: 8%;
width: 8%;
opacity: 0.7;
transition: 700ms;
}
.imgFB:hover{
transition:1s;
opacity: 1;
transform:scale(1.2);
}