html, body {
    padding: 0;
    margin: 0;
}

body {
    height: 100%;
    overflow: auto;
    font-size: 12px;
    color: #888;
    font-family: 'Open Sans', Arial, Helvetica, sans-serif;
    line-height: 24px;
    min-width: 320px;
    background: #fff;
}
.sz-maintenance {
    position: relative;
    display: block;
    width: 100%;
}
.sz-maintenance::before {
    content: "";
    position: absolute;
    z-index: 1;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    opacity: .3;
    background: #c3c3c3;
}
.sz-maintenance::after {
    content: "";
    background-image: url(/Images/maintenance-bg.png); /* image */
    opacity: 1;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    position: absolute;
    z-index: -1;
    background-repeat: no-repeat;
    background-size: cover;
    background-position: center center;
}
.sz-maintenance-inner {
    margin: 0 auto;
    width: 99.999%;
    min-height: 100vh;
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    flex-direction: column;
}
.sz-maintenance-container {
    z-index: 100;
    padding: 1.5em;
    display: -webkit-box;
    display: -webkit-flex;
    display: flex;
    -webkit-box-orient: vertical;
    -webkit-box-direction: normal;
    -webkit-flex-direction: column;
    flex-direction: column;
    -webkit-box-flex: 1;
    -webkit-flex: 1 1 auto;
    flex: 1 1 auto;
    -webkit-box-align: center;
    -webkit-align-items: center;
    align-items: center;
    -webkit-box-pack: center;
    -webkit-justify-content: center;
    justify-content: center;
}
.panel {
    border: 0;
    border-color: #d5d4d4;
    border-radius: 3px;
    box-shadow: 0 2px 0 rgba(0,0,0,.1);
    display: block;
    margin-bottom: 18px;
    background-color: #fff;
}
.panel-body {
    text-align: center;
    border-color: #43677B;
    padding: 3.5em;
}
.logo {
    margin-top: 0;
    padding-top: 1em;
    margin-bottom: 2.5em;
}
.logo img {
    display: block;
    max-width: 100%;
    max-height: 120px;
    height: auto;
    margin: 0 auto;
}
.panel-body h1 {
    font-weight: 100;
    color: #616161;
    font-size: 2.5em;
}
.panel-body p {
    text-align: left;
    font-size: 1.2em;
}