.header-lft {
  float: left;
  width: 41%;
  max-width:330px;
}
.header-rgt {
  float: left;
  width: 59%;
  max-width:470px;
}

.item-lft {
  float: left;
  height:120px;
  width: 50%;
  max-width:400px;
  text-align:left;
}
.item-rgt {
  float: left;
  height:120px;
  width: 50%;
  max-width:400px;
  text-align:left;
}

@media (max-width: 650px) {
.header-lft, .header-rgt, .item-lft, .item-rgt {
float: none;
margin: 0;
width: auto;
}
}