html, body, form {
    width: 100%;
    height: 100%;
    min-width: 400px;
    background-color: #f0f0f0;
}
fieldset {
    width: 100%;
    height: 100%;
}
.navbar-toolbar {
    min-height: 32px;
    background-color: #e6e6e6;
    box-shadow: rgba(0, 0, 0, 0.1) 0px 5px 10px 0px;
    text-align: center;
}
.wait-block {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 1071;
    display: flex;
    width: 100%;
    height: 100%;
    color: #fff;
    background-color: #000;
    opacity: 0;
    transition: opacity .15s linear;
    justify-content: center;
    align-items: center;
}
.wait-block.show {
    opacity: .5;
}