.fv_section {
    position: relative;
}

.fv_msg {
    position: absolute;
    left: 6.94%;
    right: 44.03%;
    top: 40%;
    bottom: 90.42%;
    min-width: 300px;
    font-family: 'Noto Serif JP';
    font-style: normal;
    font-weight: 300;
    font-size: 5rem;
    line-height: 50px;
    letter-spacing: 0.5em;
    z-index: 500;
    text-shadow: 0px 0px 10px rgba(255, 255, 255, 1);
    width: 100%;
    height: fit-content;
}

.fv_msg span {
    display: inline-block;
    width: 100%;
}

.fv_msg_container {
    width: 100%;
}

@media screen and (min-width: 960px) {
    .fv_msg {
        top: 40%;
        font-size: 3rem;
        line-height: 84px;
        letter-spacing: 0.76em;
    }
}

.slide {
    position: relative;
    width: 100%;
    height: 100vh;
}

.slide_wrapper {
    position: relative;
    width: 100%;
    height: 100vh;
}

.slide img {
    position: absolute;
    left: 0;
    opacity: 0;
    transition: all 1s ease-in-out;
    width: 100%;
    height: 100%;
    max-width: 100%;
    object-fit: cover;
}

#slide_speed {
    transform: rotateY(180deg);
}

@media only screen and (max-width: 480px) {
    .fv_msg {
        position: absolute;
        left: 0%;
        top: 30%;
        padding: 0px 20px;
        font-family: 'Noto Serif JP';
        font-style: normal;
        font-weight: 300;
        font-size: 2.3rem;
        line-height: 50px;
        letter-spacing: 0.5em;
        z-index: 500;
        text-shadow: 0px 0px 10px rgba(255, 255, 255, 1);
        height: fit-content;
    }
}