html,body { height: 100%; margin: 0px; padding: 0px; background-color:grey; }
.leftInfo
{
  padding:0px;
  margin:0px;
  float:left;
  width:150px;
  min-height:95vh;
}
.mainInfo
{
  padding:10px;
  margin:10px;
  float:left;
  background-color:beige;
  border-radius: 20px;
  width:calc(100% - 200px);
  min-height:95vh;
}