* {
    box-sizing: border-box;
}

/* The actual timeline (the vertical ruler) */
.timeline {
    background-color: #404040;
    font-family: Helvetica, sans-serif;
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
}

/* The actual timeline (the vertical ruler) */
.timeline::after {
    content: '';
    position: absolute;
    width: 6px;
    background-color: white;
    top: 0;
    bottom: 0;
    left: 50%;
    margin-left: 0px;
}

/* Container around content */
#tlcontainer {
    margin-left: 0px;
    padding: 10px 40px;
    position: relative;
    background-color: inherit;
    width: 50%;
}

/* The circles on the timeline */
#tlcontainer::after {
    content: '';
    position: absolute;
    width: 25px;
    height: 25px;
    right: -17px;
    background-color: white;
    border: 4px solid #FF9F55;
    top: 15px;
    border-radius: 50%;
    z-index: 1;
}

/* Place the container to the left */
.left {
    left: 0;
}

/* Place the container to the right */
.right {
    left: 50%;
}

/* Add arrows to the left container (pointing right) */
.left::before {
    content: " ";
    height: 0;
    position: absolute;
    top: 22px;
    width: 0;
    z-index: 1;
    right: 30px;
    border: medium solid white;
    border-width: 10px 0 10px 10px;
    border-color: transparent transparent transparent white;
}

/* Add arrows to the right container (pointing left) */
.right::before {
    content: " ";
    height: 0;
    position: absolute;
    top: 22px;
    width: 0;
    z-index: 1;
    left: 30px;
    border: medium solid white;
    border-width: 10px 10px 10px 0;
    border-color: transparent white transparent transparent;
}

/* Fix the circle for containers on the right side : try-8*/

.right::after {
    left: -8px;
}

/* The actual content */
#tlcontent {
    padding: 20px 30px;
    background-color: white;
    position: relative;
    border-radius: 6px;
}

/* Media queries - Responsive timeline on screens less than 600px wide */
@media screen and (max-width: 600px) {
    /* Place the timelime to the left */
    .timeline::after {
	left: 23px;
    }

    /* Full-width containers */
    #tlcontainer {
	width: 100%;
	padding-left: 70px;
	padding-right: 25px;
    }

    /* Make sure that all arrows are pointing leftwards */
    #tlcontainer::before {
	left: 60px;
	border: medium solid white;
	border-width: 10px 10px 10px 0;
	border-color: transparent white transparent transparent;
    }

    /* Make sure all circles are at the same spot */
    .left::after, .right::after {
		      left: 15px;
		  }

    /* Make all right containers behave like the left ones */
    .right {
	left: 0%;
    }
}