You could put it in a container and style the container like this:
-ms-transform: rotate(90deg); /* IE 9 */
-webkit-transform: rotate(90deg); /* Chrome, Safari, Opera */
transform: rotate(90deg);
or you can add this to your custom.css
.CheckboxSetSelector_Table {
text-align: center;
border: none;
-ms-transform: rotate(90deg); /* IE 9 */
-webkit-transform: rotate(90deg); /* Chrome, Safari, Opera */
transform: rotate(90deg);
}
I used the following snippet in a Mendix 5.9.1 project:
.wgt-CheckboxSetSelector > table {
border: 0;
}
.wgt-CheckboxSetSelector th {
display: none; // used to hide the headers
}
.wgt-CheckboxSetSelector > table > tbody > tr > td {
border: 0;
}
.wgt-CheckboxSetSelector > table > tbody > tr > td:last-child {
padding: 0 4px;
}
.wgt-CheckboxSetSelector tr {
float: left;
}
.wgt-CheckboxSetSelector input[type=checkbox] {
margin: 0;
vertical-align: middle;
}