xxxxxxxxxx
<style>
table th:first-of-type {
width: 10%;
}
table th:nth-of-type(2) {
width: 10%;
}
table th:nth-of-type(3) {
width: 50%;
}
table th:nth-of-type(4) {
width: 30%;
}
</style>
+---------+---------+---------+----------+
| Header1 | header2 | header3 | header4 |
+---------+---------+---------+----------+
| Bar | bar | bar | bar |
+---------+---------+---------+----------+