.dt-gxd form
{
    padding: 0;
    background: #e5eaff;
}
.dt-gxd .row
{
    margin-left:0 !important;
     margin-right:0 !important;
}
.gxd-intro
{
    padding:15px;
}
.dt-gxd .btn
{
    margin-left:15px;
    color:#fff;
}
.ketqua_dientich
{
    max-width:1000px;
    margin:1rem auto;
}
.table-bordered {
    border: 1px solid #ddd;
}
.ketqua_dientich thead {
    padding: 5px 0;
    text-transform: uppercase;
    font-size: 18px;
}
tr, th, td {
    padding: 10px;
    border-bottom: 1px solid #000;
}
.textcenter {
    text-align: center;
}
.textright {
    text-align: right;
}
.table > thead > tr > th, .table > tbody > tr > th, .table > tfoot > tr > th, .table > thead > tr > td, .table > tbody > tr > td, .table > tfoot > tr > td {
    padding: 8px;
    line-height: 1.42857143;
    vertical-align: top;
    border-top: 1px solid #ddd;
}
.table > thead > tr > th {
    vertical-align: bottom;
    border-bottom: 2px solid #ddd;
}
.table-bordered > thead > tr > th, .table-bordered > tbody > tr > th, .table-bordered > tfoot > tr > th, .table-bordered > thead > tr > td, .table-bordered > tbody > tr > td, .table-bordered > tfoot > tr > td {
    border: 1px solid #999;
}
.table > caption + thead > tr:first-child > th, .table > colgroup + thead > tr:first-child > th, .table > thead:first-child > tr:first-child > th, .table > caption + thead > tr:first-child > td, .table > colgroup + thead > tr:first-child > td, .table > thead:first-child > tr:first-child > td {
    border-top: 0;
}
#tinhbtn
{
	position:relative;
	left:50%;
	transform:translateX(-50%);
}
@media only screen and (max-width: 48em) {
/*************** ADD MOBILE ONLY CSS HERE  ***************/
	.dt-gxd .col
	{
		padding-bottom:0;
	}

}