I create a table composed by 3 table like that:

As you can see the Months data content is inside an horizontal scroll div, and it's work well. This is Odoo qweb engine but it's rendered as html...
.table-grid {
    width: 100% ;
    overflow-x: auto;
    white-space: nowrap;
    padding-bottom: 15px; /* Avoid scroll over data */
}
table, th, td {
    border: 1px solid black;
}
th, td {
    padding: .5em 1em;
}
<div class="table-grid">
    <table class="timesheet-table">
        <thead>
            <tr>
                <!-- Load month days columns -->
                <!-- record month_days is a n-upla like (week_day_name, day, month_name) -->
                <t t-foreach="month_days" t-as="day">
                    <th t-att-height="th_height">
                        <h5><div><t t-esc="day[0]"></t></div></h5>
                        <h6><t t-esc="day[2]"/> <t t-esc="day[1]"/></h6>
                    </th>
                </t>
            </tr>
        </thead>
        <tbody>
            <t t-foreach="range(projects_num)" t-as="project">
                <tr>
                    <t t-foreach="month_days" t-as="day">
                        <td>
                            00:00
                        </td>
                    </t>
                </tr>
            </t>
        </tbody>
    </table>
</div>
Is there a way to achieve this in a single table?
So let scrollable only center content (less first column and last).
I try to put the <div class="table-grid"> inside <tr> after some <td> but this doesn't work.
Here is the code that i try:
<table class="timesheet-table">
    <thead>
        <tr>
            <th t-att-height="th_height">Projects</th>
            <t t-foreach="month_days" t-as="day">
                <th t-att-height="th_height">
                    <h5><div><t t-esc="day[0]"></t></div></h5>
                    <h6><t t-esc="day[2]"/> <t t-esc="day[1]"/></h6>
                </th>
            </t>
            <th t-att-height="th_height">Totals</th>
        </tr>
    </thead>
    <tbody>
        <t t-foreach="range(projects_num)" t-as="project">
            <tr>
                <td>
                        Nome progetto
                </td>
                <div class="table-grid">
                    <t t-foreach="month_days" t-as="day">
                        <td>
                            00:00
                        </td>
                    </t>
                </div>
                <td>
                        45:00
                </td>
            </tr>
        </t>
    </tbody>
</table>
It's possible to achieve this in a single table?
 
     
    
