* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.page {
  width: 900px;
  margin: 0 auto;
  overflow: hidden;             /* Add this */
  background-color: #EAEDF0;    /* Add this */
}

.container {
  overflow: hidden;
  background-color: #EAEDF0;
}

.menu {
  height: 100px;
  background-color: #B2D6FF;    /* Medium blue */
}

.sidebar {
  width: 200px;                 /* Add this */
  height: 300px;
  float: left;
  background-color: #F09A9D;

}

.content {
  height: 500px;
  background-color: #F5CF8E;    /* Yellow */
}


.footer {
  clear: both;            /* Add this */
  height: 200px;
  background-color: #D6E9FE;
}