#container {
    width: 400px;
    height: 400px;
    background-color:#E5AA70;
}
.square {
    width: 200px; 
    height: 200px;
    background-color: #E5AA70;
    display: inline-block;
    float: left;
}
.circle{
    width:200px;
    height:200px;
    border-radius: 50%;
    background-color:WHITE;
    float:left;
}
#squareBlue {
    background-color: #E5AA70;
}
#circlered{
    background-color:#F5DEB3;
}
#rectangleRed {
    width: 20px;
    height: 400px;
    background-color: #F5DEB3;
    display: inline-block;
}