body, #wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

footer {
    margin-top: auto;
}

.my-div-style {
    margin-top: 2rem;       
}
.my-div-style_kiyaku    {
    margin-top: 4rem;
    line-height: 110%;
    font-size: 14px;
}
/* edgeのEyeを出さない設定 */
::-ms-reveal {
    display: none;
}