timeline style : demo 158

CSS

(Fonts required: Poppins.)
                    .main-timeline{
                        font-family: 'Poppins', sans-serif;
                        position: relative;
                    }
                    .main-timeline:after{
                        content: '';
                        display: block;
                        clear: both;
                    }
                    .main-timeline .timeline{
                        width: calc(50% + 120px);
                        margin: 0 0 25px;
                        float: right;
                        position: relative; 
                    }
                    .main-timeline .timeline-content{
                        color: #fff;
                        background: linear-gradient(#424956 50%,#343A3F 50%);
                        min-height: 125px;
                        padding: 20px 30px 20px 205px;
                        display: block; 
                        position: relative;
                        clip-path: polygon(0 0, 100% 0, 95% 50%, 100% 100%, 0 100%, 5% 50%);
                    }
                    .main-timeline .timeline-content:hover{ text-decoration: none; }
                    .main-timeline .timeline-icon{
                        color: #fff;
                        background-color: #fff;
                        font-size: 35px;
                        text-align: center;
                        line-height: 115px;
                        height: 115px;
                        width: 115px;
                        transform: translateY(-50%);
                        position: absolute;
                        left: 61px;
                        top: 50%;
                        clip-path: polygon(50% 0, 100% 20%, 100% 80%, 50% 100%, 0 80%, 0 20%);
                    }
                    .main-timeline .timeline-icon:before{
                        content: '';
                        background-color: #07E1F3;
                        position: absolute;
                        left: 13px;
                        right: 13px;
                        top: 13px;
                        bottom: 13px;
                        z-index: -1;
                        clip-path: inherit;
                    }
                    .main-timeline .title{
                        color: #07E1F3;
                        font-size: 22px;
                        font-weight: 600;
                        text-transform: uppercase;
                        letter-spacing: 0.5px;
                        margin: 0 0 5px;
                    }
                    .main-timeline .description{
                        font-size: 13px;
                        letter-spacing: 1px;
                        line-height: 20px;
                        margin: 0;
                    }
                    .main-timeline .timeline:nth-child(even){ float: left; }
                    .main-timeline .timeline:nth-child(even) .timeline-content{ padding: 20px 205px 20px 50px; }
                    .main-timeline .timeline:nth-child(even) .timeline-icon{
                        transform: translateY(-50%);
                        left: auto;
                        right: 60px;
                    }
                    .main-timeline .timeline:nth-child(4n+2) .timeline-icon:before{ background-color: #e58a12; }
                    .main-timeline .timeline:nth-child(4n+2) .title{ color: #e58a12; }
                    .main-timeline .timeline:nth-child(4n+3) .timeline-icon:before{ background-color: #FE6CC4; }
                    .main-timeline .timeline:nth-child(4n+3) .title{ color: #FE6CC4; }
                    .main-timeline .timeline:nth-child(4n+4) .timeline-icon:before{ background-color: #A487F5; }
                    .main-timeline .timeline:nth-child(4n+4) .title{ color: #A487F5; }
                    @media screen and (max-width:767px){
                        .main-timeline .timeline{ width: 100%; } 
                        .main-timeline .timeline-content{ padding-right: 50px; }
                        .main-timeline .timeline:nth-child(even) .timeline-content{ padding-left: 60px; }
                    }
                    @media screen and (max-width:576px){
                        .main-timeline .timeline{ margin: 0 0 40px; }
                        .main-timeline .timeline-content,
                        .main-timeline .timeline:nth-child(even) .timeline-content{
                            text-align: center;
                            padding: 155px 40px 20px;
                        }
                        .main-timeline .timeline-icon,
                        .main-timeline .timeline:nth-child(even) .timeline-icon{
                            transform: translateY(0) translateX(-50%);
                            left: 50%;
                            right: auto;
                            top: 21px;
                        }
                    }
                    
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