* {
    -webkit-box-sizing: border-box;
    -moz-box-sizing: border-box;
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

html {
    font-size: 15px;
    background-color: #e1dbff;
}

body {
    width: 100%;
    -webkit-text-size-adjust: 100%;
    max-width: 500px;
    font-family: -apple-system, BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Helvetica Neue","游ゴシック Medium",YuGothic,YuGothicM,メイリオ,Meiryo,sans-serif;
    font-style: normal;
    position: relative;
    color: #1b1b1b;
    background: #fff;
    z-index: 0;
    font-weight: 400;
    font-style: normal;
    margin: 0 auto;
}
header {
    justify-content: space-between;
}
header .logo {
    margin: 1rem 0;
}
header h1 a {
    display: block;
    width: 130px;
    margin-left: .5rem;
}
.float_wrap {
    max-width: 500px;
    right: 0;
    left: 0;
    margin: auto;
}