Timeline style03

<!DOCTYPE html>
<html>
<head>
	<title>Timeline Style 03 | par NGLESSON</title>
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
	<meta http-equiv="X-UA-Compatible" content="IE=edge">
	<meta name="viewport" content="width=device-width, initial-scale=1">
	<meta name="keyword" content="Timeline Style 03">
	<meta name="author" content="Mezgani said">
	<meta name="copyright" content="NGLESSON">
	<link href="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet">
	<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.7.0/css/font-awesome.min.css">
	<link href="style.css" rel="stylesheet">
</head>
<body>
<main>
    <div class="container">
        <h3 class="card-title">Timeline CSS</h3>
        <div class="row">
            <div class="col-md-12">
                <div class="main-timeline3">
                    <div class="timeline">
                        <div class="timeline-icon"><span class="year">2018</span></div>
                        <div class="timeline-content">
                            <h3 class="title">Web Desginer</h3>
                            <p class="description">
                                Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec lacinia mi ultrices, luctus nunc ut, commodo enim. Vivamus sem erat.
                            </p>
                        </div>
                    </div>
                    <div class="timeline">
                        <div class="timeline-icon"><span class="year">2017</span></div>
                        <div class="timeline-content">
                            <h3 class="title">Web Developer</h3>
                            <p class="description">
                                Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec lacinia mi ultrices, luctus nunc ut, commodo enim. Vivamus sem erat.
                            </p>
                        </div>
                    </div>
                    <div class="timeline">
                        <div class="timeline-icon"><span class="year">2016</span></div>
                        <div class="timeline-content">
                            <h3 class="title">Web Desginer</h3>
                            <p class="description">
                                Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec lacinia mi ultrices, luctus nunc ut, commodo enim. Vivamus sem erat.
                            </p>
                        </div>
                    </div>
                    <div class="timeline">
                        <div class="timeline-icon"><span class="year">2015</span></div>
                        <div class="timeline-content">
                            <h3 class="title">Web Developer</h3>
                            <p class="description">
                                Lorem ipsum dolor sit amet, consectetur adipiscing elit. Donec lacinia mi ultrices, luctus nunc ut, commodo enim. Vivamus sem erat.
                            </p>
                        </div>
                    </div>
                </div>
            </div>
        </div>
    </div>
</main>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>                       
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script> 
</body>
</html>

body {
    margin-top: 20px;
    background-color: #f0f6ff;
}

a {
    text-decoration: none
}

.main-timeline3 {
    overflow: hidden;
    position: relative
}

.main-timeline3 .timeline {
    position: relative;
    margin-top: -79px
}

.main-timeline3 .timeline:first-child {
    margin-top: 0
}

.main-timeline3 .timeline-icon,
.main-timeline3 .year {
    margin: auto;
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0
}

.main-timeline3 .timeline:after,
.main-timeline3 .timeline:before {
    content: "";
    display: block;
    width: 100%;
    clear: both
}

.main-timeline3 .timeline:before {
    content: "";
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    right: 0;
    z-index: 2
}

.main-timeline3 .timeline-icon {
    width: 210px;
    height: 210px;
    border-radius: 50%;
    border: 25px solid transparent;
    border-top-color: #f44556;
    border-right-color: #f44556;
    z-index: 1;
    transform: rotate(45deg)
}

.main-timeline3 .year {
    display: block;
    width: 110px;
    height: 110px;
    line-height: 110px;
    border-radius: 50%;
    background: #fff;
    box-shadow: 0 0 20px rgba(0, 0, 0, .4);
    font-size: 30px;
    font-weight: 700;
    color: #f44556;
    text-align: center;
    transform: rotate(-45deg)
}

.main-timeline3 .timeline-content {
    width: 35%;
    float: right;
    background: #f44556;
    padding: 30px 20px;
    margin: 50px 0;
    box-shadow: 0 10px 25px -10px rgba(72, 29, 99, .3);
    z-index: 1;
    position: relative
}

.main-timeline3 .timeline-content:before {
    content: "";
    width: 20%;
    height: 15px;
    background: #f44556;
    position: absolute;
    top: 50%;
    left: -20%;
    z-index: -1;
    transform: translateY(-50%)
}

.main-timeline3 .title {
    font-size: 20px;
    font-weight: 700;
    color: #fff;
    margin: 0 0 10px
}

.main-timeline3 .description {
    font-size: 16px;
    color: #fff;
    line-height: 24px;
    margin: 0
}

.main-timeline3 .timeline:nth-child(2n) .timeline-icon {
    transform: rotate(-135deg);
    border-top-color: #e97e2e;
    border-right-color: #e97e2e
}

.main-timeline3 .timeline:nth-child(2n) .year {
    transform: rotate(135deg);
    color: #e97e2e
}

.main-timeline3 .timeline:nth-child(2n) .timeline-content {
    float: left
}

.main-timeline3 .timeline:nth-child(2n) .timeline-content:before {
    left: auto;
    right: -20%
}

.main-timeline3 .timeline:nth-child(2n) .timeline-content,
.main-timeline3 .timeline:nth-child(2n) .timeline-content:before {
    background: #e97e2e
}

.main-timeline3 .timeline:nth-child(3n) .timeline-icon {
    border-top-color: #13afae;
    border-right-color: #13afae
}

.main-timeline3 .timeline:nth-child(3n) .year {
    color: #13afae
}

.main-timeline3 .timeline:nth-child(3n) .timeline-content,
.main-timeline3 .timeline:nth-child(3n) .timeline-content:before {
    background: #13afae
}

.main-timeline3 .timeline:nth-child(4n) .timeline-icon {
    border-top-color: #105572;
    border-right-color: #105572
}

.main-timeline3 .timeline:nth-child(4n) .year {
    color: #105572
}

.main-timeline3 .timeline:nth-child(4n) .timeline-content,
.main-timeline3 .timeline:nth-child(4n) .timeline-content:before {
    background: #105572
}

@media only screen and (max-width:1199px) {
    .main-timeline3 .timeline {
        margin-top: -103px
    }
    .main-timeline3 .timeline-content:before {
        left: -18%
    }
    .main-timeline3 .timeline:nth-child(2n) .timeline-content:before {
        right: -18%
    }
}

@media only screen and (max-width:990px) {
    .main-timeline3 .timeline {
        margin-top: -127px
    }
    .main-timeline3 .timeline-content:before {
        left: -2%
    }
    .main-timeline3 .timeline:nth-child(2n) .timeline-content:before {
        right: -2%
    }
}

@media only screen and (max-width:767px) {
    .main-timeline3 .timeline {
        margin-top: 0;
        overflow: hidden
    }
    .main-timeline3 .timeline:before,
    .main-timeline3 .timeline:nth-child(2n):before {
        box-shadow: none
    }
    .main-timeline3 .timeline-icon,
    .main-timeline3 .timeline:nth-child(2n) .timeline-icon {
        margin-top: -30px;
        margin-bottom: 20px;
        position: relative;
        transform: rotate(135deg)
    }
    .main-timeline3 .timeline:nth-child(2n) .year,
    .main-timeline3 .year {
        transform: rotate(-135deg)
    }
    .main-timeline3 .timeline-content,
    .main-timeline3 .timeline:nth-child(2n) .timeline-content {
        width: 100%;
        float: none;
        border-radius: 0 0 20px 20px;
        text-align: center;
        padding: 25px 20px;
        margin: 0 auto
    }
    .main-timeline3 .timeline-content:before,
    .main-timeline3 .timeline:nth-child(2n) .timeline-content:before {
        width: 15px;
        height: 25px;
        position: absolute;
        top: -22px;
        left: 50%;
        z-index: -1;
        transform: translate(-50%, 0)
    }
}