header{
   background-color: #8936dc; 
   text-align: center;
   border: solid purple 2px;
}
#main{
    display: inline;
    margin-left: 0;
    margin-right: 0;
    text-align: center;
}

.parent{
    
    display: flex;
}
#a1{
   background-color: #ccc;
  flex: 46%;
  text-align: justify;
  font-weight: lighter;
  padding-left: 15px;
  padding-right: 15px;
  border-right: solid #999 1px;
}
#a2{
    background-color: #ccc;
  flex: 53%;
  text-align: justify;
  font-weight: lighter;
  padding-left: 15px;
  padding-right: 15px;
  border-right: solid #999 1px;
}
aside{
    background-color: #ccc;
    float: right;
  width: 20%;
  margin: 10px;
  padding: 20px;
  border: solid black 2px;
  font-size: 120%;  
    text-align:center;
}

footer{
    padding-top:10px;
    background-color: #8936dc;
    border:solid black 5px;
    text-align: center;
}