* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background-color: #f4f9ff;
    max-width: 1024px;
    background: url(../img/backimg.png) top center;
    background-repeat: no-repeat;
    background-size: cover;
    background-attachment: fixed;
}

header {
    width: 100%;
    height: 12vw;
    background-color: #ffffff;
    position: fixed;
    left: 0;
    top: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    max-width: 1024px;
    margin: auto;
    box-shadow: 0 2px 10px #b3c9f4;
}

.headerLogo img {
    max-width: 34vw;
    height: auto;
}

.topBackground {
    max-width: 1024px;
    height: 100%;
    margin-top: 3%;

    margin: auto;
    box-sizing: border-box;
    padding-bottom: 5vw;
}

.textLogo {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.textLogo img {
    width: 100%;
    height: auto;
}

.buttonAll {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: space-between;
    margin-top: -4vw;
}

.buttonAll button {
    background-color: transparent;
    border: none;
    outline: none;
    cursor: pointer;
}

.buttonAll img {
    width: 60%;
    height: auto;
}

.bottomBanner {
    margin-top: 2vw;
    display: flex;
    justify-content: center;
}

.bottomBanner img {
    width: 93%;
    height: auto;
    margin-top: -2vw;
    max-width: 714px;
}

@media screen and (min-width:768px) {
    .buttonAll img {
        width: 100%;
        height: auto;
        max-width: 407px;
    }
}

@media screen and (min-height:737px) and (max-width:539px) {
    .topBackground {
        margin-top: 6vw;
    }

    .buttonAll button {
        margin-top: 4vw;
    }

    .bottomBanner {
        margin-top: 6vw;
    }
}