.main-class{
	float: left;
	width: 100%; 
}
 
.form-row {
  clear: both;
  float: left;
  margin-bottom: 10px;
  width: 100%;
}

.form-row > label {
  float: left;
  padding-top: 5px;
  width: 15%;
}

.form-row > input[type="text"] {
  float: left;
  width: 50%;
}