#container{
    display: flex;
    align-items: flex-end;
    height: 400px;
}
body{
    display: flex;
    align-items: center;
    flex-direction: column;
}
.bar{
    width: 10px;
    margin-right: 1px;
    background-color: rgb(0, 0, 0);
}
button{
    padding: 15px 20px;
    margin: 0 10px;
    font-weight: bolder;
}