html {
	scroll-behavior: smooth;
}

.arrow_up, .arrow_down {
    position: fixed;
    bottom: 70px;
    right: 1%;
    color: #fff;
    width: 40px;
    height: 40px;
    background: linear-gradient(130deg, #3e5a78 50%, #398a99 50%);
    -webkit-background-size: 300%;
    background-size: 300%;
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    font-size: 36px;
    border-radius: 5px;
    transition: .5s;
    z-index: 10;
    padding-bottom: 8px;
}

.arrow_down {
    bottom: 20px;
    right: 1%;
    padding-top: 8px;
}

.arrow_up:visited, .arrow_down:visited {
    color: #fff;
}

.arrow_up:hover, .arrow_down:hover {
    background-position: 100% 0;
    text-decoration: none;
}