.Content {
 width: 440px;
display: inline-block;
vertical-align: top;
vertical-align: middle;
}
.Sidebar {
  width: 440px;
  display: inline-block;
  vertical-align: top;
}
textarea {
  border: 0;
  field-sizing: content;
  width: 95%;
  margin: 8px;
}

input {
  border: solid 1px #666;
  margin: 4px;
  padding: 4px;
}

fieldset {
  margin: 8px;
}
#errors fieldset {
  background-color: lightsalmon;
}