#mainimg {
    margin:auto;
    width:960px;
    height:540px;
    background-image:url('taller_burmo.jpg');
    background-repeat:no-repeat;
    border-radius:15px;
}

#maintapa {
    margin:auto;
    width:960px;
    height:540px;
    background-color:black;
    opacity:0;
    position:relative;
    top:-540px;
    border-radius:15px;
}

#mainbar {
    margin:auto;
    width:960px;
    height:54px;
    text-align:right;
}

.btn {
  width:52px;
  height:52px;
  cursor:pointer;
}


p {
   margin:auto;
   text-align:center;
   border:solid 1px grey;
   width:948px;
   border-radius:5px;
}