body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
.main {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: url("../img/bg.png") center top no-repeat;
    flex: 1 0 auto;
}
.main h1 {
    text-align: center;
    font-size: 62px;
    font-weight: bold;
}
.main p {
    text-align: center;
    font-size: 32px;
    margin-bottom: 27px;
    font-weight: bold;
}
.button {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    width: 255px;
    background-color: #7b90f7;
    border-radius: 6px;
    height: 68px;
    font-size: 22px;
    font-weight: bold;
    cursor: pointer;
}
.button img {
    margin-right: 10px;
}
.footer {
    flex: 0 0 auto;
    height: 110px;
    background-color: #fff;
    text-align: center;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: #999;

}
.footer a {
    color: currentColor;
    text-decoration: none;
}