调整​​style.css​​对应样式宽度，例如宽度200px修改成250px

body.fixed-sidebar .navbar-static-side, body.canvas-menu .navbar-static-side {
    width: 250px;
}

nav .logo {
  width: 250px;
}

#page-wrapper {
    margin: 0 0 0 250px;
}