/*body {
    background: #fff;
}*/

/*h1 {
    text-align: center;
    text-transform: uppercase;
}*/

/*.container {
    width: 1200px;
    margin: auto;
}*/

.timeline {
    counter-reset: test 0;
    position: relative;
}

    .timeline li {
        list-style: none;
        float: left;
        width: 110px;
        position: relative;
        text-align: center;
        text-transform: uppercase;
    }

ul:nth-child(1) {
    color: #4caf50;
}

.timeline li:before {
    counter-increment: test;
    content: counter(test);
    width: 50px;
    height: 50px;
    border: 3px solid #4caf50;
    border-radius: 50%;
    display: block;
    text-align: center;
    line-height: 50px;
    margin: 0 auto 10px auto;
    background: #fff;
    color: #000;
    transition: all ease-in-out .3s;
    cursor: pointer;
}

.timeline li:after {
    content: "";
    position: absolute;
    width: 100%;
    height: 1px;
    background-color: grey;
    top: 25px;
    left: -50%;
    z-index: -999;
    transition: all ease-in-out .3s;
}

.timeline li:first-child:after {
    content: none;
}

.timeline li.active-tl {
    color: #555555;
}

    .timeline li.active-tl:before {
        background: #4caf50;
        color: #F1F1F1;
    }

    .timeline li.active-tl + li:after {
        background: #4caf50;
    }