.flip-wrapper {
    perspective: 1000px;
}

.flip-inner {
    min-height: 350px;
    transition: transform 0.6s;
    transform-style: preserve-3d;
}

.flipped .flip-inner {
    transform: rotateY(180deg);
}

.flip-front, .flip-back {
    backface-visibility: hidden;
}

.flip-back {
    transform: rotateY(180deg);
}



.l-block-spacing {
    min-height: 80vh;

}

@media screen and (min-width: 768px) {
    .l-block-spacing {
        max-height: 500px;
        overflow-y: auto;
    }
}

.timeline-list {
    border-left: 5px solid #1c323a;
    max-width: 700px;


    &:before {
        content: "";
        border-left: 5px solid #1c323a;
        left: -0.25em;
        height: 100%;
        position: absolute;
        bottom: 0;
        top: 0;
    }

    &:after {
        content: "";
        clear: both;
        left: -20px;
        position: absolute;
        bottom: -3px;
        width: 35px;
        height: 35px;
        border-radius: 50%;
        background: none repeat scroll 0 0 #1c323a;
        border: 5px solid #1c323a;
        box-shadow: 1px 1px 1px rgba(0, 0, 0, 0.1);
    }
}

.timeline-list li:before {
    content: "";
    position: absolute;
    left: -63px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: #eceeef;
    border: 5px solid #1c323a;
}

@media screen and (max-width: 400px) {
    .timeline-list li:before {
        left: -59px;
    }
}

li::marker {
    content: "";
}