/*
 * Correção da largura de colunas em grids excedendo o tamanho da janela
 * http://www.sencha.com/forum/showthread.php?16906-2.0rc1-SOLVED-Grid-inside-any-panel-other-than-window-or-viewport-does-not-resize&p=80794#post80794
 */
.x-grid3-header-offset {
    padding-left: 1px;
    width: auto;
}