.myTimelineHorizontal {
    display: normal;
}

.myTimelineVertical {
    display: none;
    width: 100%;
    background-color: #cccccc; /*as gray*/
    border-radius: 10px;
}

* {
    box-sizing: border-box;
}

/* The actual timeline (the vertical ruler) */
.myTimeline {
    position: relative;
    max-width: 1200px;
    margin: 0 auto;
    /*background-color: #cccccc;*/
}

/* The actual timeline (the vertical ruler) */
.myTimeline::after {
    content: '';
    position: absolute;
    width: 6px;
    background-color: #cccccc;
    top: 0;
    bottom: 0;
    left: 34px;
    margin-left: -3px;
}

/* Container around content */
.myContainer {
    padding: 10px 40px;
    position:relative;
    background-color:inherit; /*inherit*/
    width: 100%; 
    border-left:4px solid white;
}

/* The circles on the timeline */
.myContainer::after {
    content: '';
    position: absolute;
    width: 25px;
    height: 25px;  
    right: -17px;
    background-color: #cccccc; /*cccccc as gray*/ /*00b33c as green*/    
    border: 3px solid white;
    top: 18px;
    border-radius: 50%;
    z-index: 1;
}

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

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

/* 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 */
.right::after {
    left: -16px;
}

/* The actual content */
.myContent {  
    padding: 8px 10px;
    background-color: white;
    position: relative;
    border-radius: 6px;
}

@media screen and (max-width: 1024px) {
    .myTimelineHorizontal {
        display: none;
    }

    .myTimelineVertical {
        display: inline-block;
        width:100%;
        background-color: #cccccc;
        border-radius:10px;
    }
        
    .myTimeline::after {
        width:0px;
    }
}

@media screen and (max-width: 600px) {
    .myTimelineHorizontal {
        display: none;
    }

    .myTimelineVertical {
        display: inline-block;
        width:100%;
        background-color: #cccccc;
        border-radius:10px;
    }

    /* Place the timelime to the left */
    .myTimeline::after {
        width:0px;
    }
  
    /* Full-width containers */
    .myContainer {
        width: 90%;            
        padding-left: 30px; 
        padding-right: 25px;
    }
 
    /* Make sure that all arrows are pointing leftwards */
    .myContainer::before {
        left: 20px;
        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: 24px;
    }
}