Problem with the height from bootstrap select

Question

I can't change the height from the dropdown list.

I use Bootstrap-select 1.13.1.

<select class="selectpicker" data-live-search="true" id="projectSelect" name="projectSelect" onchange="this.form.submit()" data-width="400px">
@foreach (var project in Model.ProjectList)
{
    @if (!string.IsNullOrEmpty(Model.selectedProject) && Model.selectedProject.Equals(project))
    {
    <option style="height:35px" value="@project" selected>@project</option>
    }
    <option style="height:35px" value="@project">@project</option>
}
</select>
<select class="selectpicker" data-live-search="true" id="ticketSelect" name="ticketSelect" onchange="this.form.submit()" data-width="400px">
@foreach (var ticket in Model.IssueList)
{
    @if (!string.IsNullOrEmpty(Model.selectedIssue) && Model.selectedIssue.Equals(ticket))
    {
        <option value="@ticket" selected>@ticket</option>
    }
    <option value="@ticket">@ticket</option>
}
</select>