I am trying to modify the color of the lower edge of an input of the material design library that Angular offers ( Link ) by white and there is no way. I tried to edit the md-input-container and internal classes but nothing.
<md-toolbar>
<md-icon>account_box</md-icon>
<span>Usuarios</span>
<span class="toolbar-spacer"></span>
<md-input-container>
<input mdInput #filter type="search">
<span mdSuffix>
<md-icon>search</md-icon>
</span>
</md-input-container>
<md-icon>add</md-icon>
</md-toolbar>