nutui/src/packages/timeline/timeline.scss

.nut-timeline{
    
    .nut-timelineitem{

        position: relative;
        font-size: 12px;

        .timelineitem-list-box{
            padding: 0 18px 0 0px;
            color:#333;
            .timelineitem-list{
                position: relative;
                padding-bottom: 10px;

                .timelineitem-point{
                    position: absolute;
                    left: 0px;
                    top: 2px;
                    .point-icon{
                        width: 7px;
                        height: 7px;
                        border: 1px solid #f00;
                        border-radius: 50%;
                        &.circle-icon{
                            background: #f00;
                        }

                        &.hollow-icon{
                            background: transparent;
                        }
                    }

                    .custom-icon{
                        // width: 9px;
                        // height: 9px;
                        overflow: hidden;
                        background: transparent;
                    }
                }
                
                .timelineitem-title{
                    margin-bottom: 8px;
                    padding-left: 13px;
                    line-height: 13px;
                    position: relative;
                    .time{
                        font-size: 12px;
                        color: #666;
                    }
                }
                .timelineitem-content{
                    padding-left: 13px;
                }
        
                
            }
        }

        &.left-border{
            &:before{
                position: absolute;
                top: 10px;
                left: 4px;
                content: '';
                width: 1px;
                height: calc(100% - 8px);
                background: #C2C2C2;
            };
        }

        &:last-child{
            &.left-border{
                &:before{
                    width: 0px;
                };
            }
        }
    }
    
    


}