@import url(https://fonts.googleapis.com/css?family=Lato:700)
*,
*:before,
*:after
    box-sizing: border-box
html,
body,#wrapper{
    display:flex;
    flex-direction:column;
    min-height:100vh;
}
.my-div-style{
    margin-top: 3.5rem;
}
footer{
    margin-top: auto;
}
.bg_login {
    background-image: url(../img/sky_00010.jpg);     /* 背景画像指定 */
}