:root{
    --white: #fff;
    --black: #222;
    --color_1: linear-gradient(to right,#E7007B,#E7007B,#BF1424,#BF1424);
    --color_2: linear-gradient(to right,#F04302,#F04302,#FC8819,#FC8819);
    --color_3: linear-gradient(to right,#99C840,#99C840,#DEE420,#DEE420);
    --color_4: linear-gradient(to right,#0994C1,#0994C1,#70B1A5,#70B1A5);
}
.main-timeline{
    padding: 40px 0 20px;
    margin: 20px 0;
    position: relative;
    z-index: 1;
}
.main-timeline:before{
    content: '';
    background-image: url('../img/pexels-photo.jpg');
    box-shadow: 0 0 5px black;
    transform: translateX(-50%);
    width: 30%;
    height: 100%;
    position: absolute;
    left: 50%;
    top: 0;
    z-index: -1;
}
.row_timeline {
	display:-webkit-box;
	display:-ms-flexbox;
	display:flex;
	-ms-flex-wrap:wrap;
	flex-wrap:wrap;
	margin-right:-15px;
	margin-left:-15px;
	max-width: 95%;
	float:right;
}
.row_timeline_l {
	display:-webkit-box;
	display:-ms-flexbox;
	display:flex;
	-ms-flex-wrap:wrap;
	flex-wrap:wrap;
	margin-right:-15px;
	margin-left:-15px;
	max-width: 95%;
	float:left;
	padding-left: 2%;
}
.mittig {
	display: flex;
	align-items: center;
	justify-content:center;
}
.timeline_text {
	padding-left: 5%;
}
.timeline_text_l {
	padding-right: 5%;
}

.img-fluid_timeline {
	max-width:85%;
	height:auto;
}

.timeline_p {
	line-height: 1.8;
}
.main-timeline:after{
    content: '';
    display: block;
    clear: both;
}
.main-timeline .timeline{
    width: 66.5%;
    min-height: 130px;
    margin-bottom: 25px;
    display: block;
    float: right;
    position: relative;
}
.main-timeline .timeline-content{ display: block; }
.main-timeline .timeline-content:hover{ text-decoration: none; }
.main-timeline .title{
    color: var(---white);
    background: var(--color_1);
    font-size: 20px;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 10px 20px;
    margin: 0;
    display: block;
}
.main-timeline .title .timeline-year{
    font-size: 30px;
    font-weight: 700;
    margin-right: 10px;
    display: inline-block;
}
.main-timeline .inner-content{
    color: var(--black);
    font-size: 15px;
    letter-spacing: 1px;
    padding: 10px 10px 10px 400px;
    position: relative;
}
.main-timeline .inner-content:before{
    background: linear-gradient(45deg, transparent 49%, #BF1424 50%);
    content: '';
    height: 20px;
    width: 18px;
    position: absolute;
    left: 0;
    top: 0;
    z-index: -2;
}
.main-timeline .timeline-icon{
    color: #999;
    font-size: 80px;
    transform: translateY(10%);
    position: absolute;
    top: 50%;
    left: 5.5%;
}
.main-timeline .timeline:nth-child(even){ float: left; }
.main-timeline .timeline:nth-child(even) .title{ text-align: right; }
.main-timeline .timeline:nth-child(even) .inner-content{ padding: 10px 400px 10px 30px; }
.main-timeline .timeline:nth-child(even) .inner-content:before{
    transform: rotateY(180deg);
    left: auto;
    right: 0;
}
.main-timeline .timeline:nth-child(even) .timeline-icon{
    left: auto;
    right: 14.5%;
}
.main-timeline .timeline:nth-child(4n+2) .title{ background: var(--color_2); }
.main-timeline .timeline:nth-child(4n+2) .inner-content:before{
    background: linear-gradient(45deg, transparent 49%, #F04302 50%);
}
.main-timeline .timeline:nth-child(4n+3) .title{ background: var(--color_3); }
.main-timeline .timeline:nth-child(4n+3) .inner-content:before{
    background: linear-gradient(45deg, transparent 49%, #DEE420 50%);
}
.main-timeline .timeline:nth-child(4n+4) .title{ background: var(--color_4); }
.main-timeline .timeline:nth-child(4n+4) .inner-content:before{
    background: linear-gradient(45deg, transparent 49%, #0994C1 50%);
}
@media only screen and (max-width:1200px){
    .main-timeline .inner-content{ padding: 10px 10px 10px 330px; }
    .main-timeline .timeline:nth-child(even) .inner-content{ padding: 10px 320px 10px 25px; }
    .main-timeline .timeline-icon{ left: 18.5%; }
    .main-timeline .timeline:nth-child(even) .timeline-icon{ right: 18%; }
    .description_rechts {
	max-width: 80%;
	float: right;
	}
	.description_links {
	max-width: 80%;
	float: left;
	}
}
@media only screen and (max-width:990px){
    .main-timeline .inner-content{ padding: 10px 10px 10px 255px; }
    .main-timeline .timeline:nth-child(even) .inner-content{ padding: 10px 250px 10px 20px; }
    .main-timeline .timeline-icon{ left: 17%; }
    .main-timeline .timeline:nth-child(even) .timeline-icon{ right: 16.5%; }
}
@media only screen and (max-width:767px){
    .main-timeline:before{
        width: 60px;
        left: 15px;
        transform: translateX(0);
    }
    .main-timeline .timeline{ width: 100%; }
    .main-timeline .title{
        font-size: 18px;
        padding: 10px;
    }
    .main-timeline .timeline:nth-child(even) .title{ text-align: left; }
    .main-timeline .title .timeline-year{
        font-size: 20px;
        margin-right: 5px;
    }
    .main-timeline .inner-content,
    .main-timeline .timeline:nth-child(even) .inner-content{
        padding: 10px 10px 10px 90px;
    }
    .main-timeline .timeline:nth-child(even) .inner-content:before{
        transform: rotateY(0);
        left: 0;
        right: auto;
    }
    .main-timeline .timeline-icon,
    .main-timeline .timeline:nth-child(even) .inner-content .timeline-icon{
        font-size: 40px;
        left: 26px;
        right: auto;
    }
    .description_links {
	max-width: 80%;
	float: right;
	}
	.timeline_bild {
	display:none;
	}
	.timeline_text {
	padding-left: 4%;
	}
	.timeline_text_l {
	padding-left: 4%;
	}
	.row_timeline_l {
	float:right;
	}	
}
@media (max-width: 576px) {
	.timeline_text {
	padding-left: 10%;
	}
	.timeline_text_l {
	padding-left: 10%;
	}
}