app-root,
md-sidenav-container,
#main-content {
  margin: 0;
  width: 100%;
  height: 100%;
}

md-sidenav { width: 250px; }

#main-content {
  min-height: 100%;
  padding: 10px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
}



* {
  -webkit-box-sizing: border-box;
  -moz-box-sizing: border-box;
  box-sizing: border-box;
}

app-root,
md-sidenav-container,
#main-content {
  margin: 0;
  width: 100%;
  height: 100%;
}

md-sidenav { width: 250px; }

#main-content {
  min-height: 100%;
  padding: 10px;
  display: -webkit-box;
  display: -ms-flexbox;
  display: flex;
  -webkit-box-orient: vertical;
  -webkit-box-direction: normal;
  -ms-flex-direction: column;
  flex-direction: column;
}



Add box sizing to all elements
Add box sizing to all elements
