#responsive-form{
max-width:100% ;
margin:0 auto;
width:100%;
}
.form-row{
width: 100%;
}
.column-half, .column-full{
float: left;
position: relative;
padding: 0.65rem;
width:100%;
-webkit-box-sizing: border-box;
-moz-box-sizing: border-box;
box-sizing: border-box
}
.clearfix:after {
content: "";
display: table;
clear: both;
} @media only screen and (min-width: 48em) { 
.column-half{
width: 50%;
}
}