.panel-col-left-outer { 
  float: left; 
  width: 25%; 
}
.panel-col-left-inner { 
  float: left; 
  width: 25%; 
}
.panel-col-right-inner { 
  float: left; 
  width: 25%; 
}
.panel-col-right-outer { 
  float: left; 
  width: 25%; 
}