h1 {
    text-align: left;
}

.image_line {
    width: 100%;
    height: 150px;
    display: flex;
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
}

.arrow_container {
    background-color: #999999;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    padding: 8px;
    background-image: url(images/right.png);
    background-size: contain;
    background-origin: content-box;
    background-position: center;
    background-repeat: no-repeat;
}

.arrow_container:hover {
    background-color: #666666;
}

#arrow_left {
    transform: scaleX(-1);
}

.line {
    height: 100%;
    overflow: hidden;
    position: relative;
}

.line_paper {
    height: 100%;
    width: inherit;
    position: absolute;
    left: 0;
}

.line_image {
    width: 20%;
    height: 100%;
    padding: 1%;
    background-size: contain;
    background-origin: content-box;
    background-position: center;
    background-repeat: no-repeat;
}