* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
    background: #f4f7fb;
    color: #1f2937;
}

.site-header-frame {
    display: block;
    width: 100%;
    height: 140px;
    border: 0;
    background: #ffffff;
}

.page-content {
    min-height: calc(100vh - 140px);
}