body{background: ivory;}
input[type="text"] {
  width: calc(100% - 3em); padding: 0.5ex; border: 1px solid #ccc;
  border-radius: 0.5ex;
}
p {margin: 0.3ex;}
p.shout {font-size: 150%; text-align: center;
  background: #48a765; color: white; padding: 1ex; margin: 1em;
  border: 3px dotted #cce; border-radius: 1em;
}