timeline style : demo 190

CSS

(Fonts required: Poppins.)
                    .main-timeline{ font-family: 'Poppins', sans-serif; }
                    .main-timeline:after{
                        content: '';
                        display: block;
                        clear: both;
                    }
                    .main-timeline .timeline{
                        width: 50%;
                        padding: 0 40px 0 0;
                        margin: 0 5px 15px 0;
                        float: left;
                    }
                    .main-timeline .timeline-content{
                        min-height: 120px;
                        padding: 0 20px;
                        display: block;
                        position: relative;
                    }
                    .main-timeline .timeline-content:hover{ text-decoration: none; }
                    .main-timeline .timeline-icon{
                        color: #fff;
                        background: linear-gradient(#8FCB00 50%,#76A414 50%);
                        font-size: 40px;
                        text-align: center;
                        line-height: 110px;
                        width: 110px;
                        height: 110px;
                        padding-left: 14px;
                        text-shadow: 0 0 10px rgba(0,0,0,0.2);
                        transform: translateY(-50%);
                        position: absolute;
                        right: -110px;
                        top: 50%;
                        clip-path: polygon(75% 0%, 100% 50%, 75% 100%, 0% 100%, 25% 50%, 0% 0%);
                    }
                    .main-timeline .title{
                        color: #76A414;
                        font-size: 19px;
                        font-weight: 600;
                        letter-spacing: 1px;
                        text-transform: uppercase;
                        margin: 0 0 7px;
                    }
                    .main-timeline .description{
                        color: #666;
                        font-size: 13px;
                        font-weight: 400;
                        line-height: 21px;
                        letter-spacing: 1px;
                        margin: 0;
                    }
                    .main-timeline .timeline:nth-child(even){
                        padding: 0 0 0 40px;
                        margin: 0 0 15px 5px;
                        float: right;
                    }
                    .main-timeline .timeline:nth-child(even) .timeline-icon{
                        padding: 0 14px 0 0;
                        right: auto;
                        left: -110px;
                        clip-path: polygon(100% 0%, 75% 50%, 100% 100%, 25% 100%, 0% 50%, 25% 0%);
                    }
                    .main-timeline .timeline:nth-child(4n+2) .timeline-icon{
                        background: linear-gradient(#EE3E1A 50%,#B93018 50%);
                    }
                    .main-timeline .timeline:nth-child(4n+2) .title{ color: #B93018; }
                    .main-timeline .timeline:nth-child(4n+3) .timeline-icon{
                        background: linear-gradient(#3DA4E6 50%,#3977BD 50%);
                    }
                    .main-timeline .timeline:nth-child(4n+3) .title{ color: #3977BD; }
                    .main-timeline .timeline:nth-child(4n+4) .timeline-icon{
                        background: linear-gradient(#8A6BD4 50%,#5A429C 50%);
                    }
                    .main-timeline .timeline:nth-child(4n+4) .title{ color: #5A429C; }
                    @media screen and (max-width:767px){
                        .main-timeline .timeline,
                        .main-timeline .timeline:nth-child(even){
                            width: 100%;
                            padding: 0 0 0 110px;
                            margin: 0 0 30px;
                        }
                        .main-timeline .timeline-icon,
                        .main-timeline .timeline:nth-child(even) .timeline-icon{
                            left: -110px;
                            right: auto;
                        }
                    }
                    @media screen and (max-width:479px){
                        .main-timeline .timeline,
                        .main-timeline .timeline:nth-child(even){
                            padding: 130px 0 0;
                        }
                        .main-timeline .timeline-content{ text-align: center; }
                        .main-timeline .timeline-icon,
                        .main-timeline .timeline:nth-child(even) .timeline-icon{
                            transform: translateY(0) translateX(-50%);
                            top: -130px;
                            left: 50%;
                        }
                    }
                    
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