side.css

/*.tree*/
/*{*/
/*    position: absolute;*/
/*    top: 50%;*/
/*    left: 50%;*/
/*    transform: translate(-50%, -50%);*/
/*    background-color : #4444aa;*/
/*}*/
/*.graph*/
/*{*/
/*    position: absolute;*/
/*    top: 50%;*/
/*    right: 50%;*/
/*    transform: translate(50%, 50%);*/
/*}*/

#container{
    display: flex;
    flex-direction: row;
    width: 100vw;
}