*,
*::before,
*::after {
    box-sizing: border-box;
}

body {
    font-family: Roboto, sans-serif;
    font-size: 1vw;
    line-height: 1.5;
    background: white;
    margin: 0;
    padding: 0;
}

.widgets-container {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: white;
}

.form-platz {
    width: 100%;
    max-width: 420px;
    margin: 10vh auto 0;
    padding: 2rem;
}

.eingabe {
    width: 100%;
    padding: 0.8rem;
    border: 1px solid #ccc;
    font-size: 1rem;
    margin-bottom: 1rem;
}

.knopf {
    width: 100%;
    padding: 0.9rem;
    background: #428bca;
    color: white;
    font-size: 1rem;
    border: none;
    cursor: pointer;
}

.knopf:disabled {
    background: #8fbce3;
}

.spinner {
    display: none;
    margin-left: 0.5rem;
    width: 14px;
    height: 14px;
    border: 2px solid white;
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: dreh 0.5s linear infinite;
}

.checker {
    display: none;
    margin-left: 0.5rem;
    width: 14px;
    height: 14px;
    border: solid white;
    border-width: 0 3px 3px 0;
    transform: rotate(45deg);
}

.knopf.laden .spinner {
    display: inline-block;
}

.knopf.fertig .checker {
    display: inline-block;
}

@keyframes dreh {
    to { transform: rotate(360deg); }
}

.verbindungsbox {
    display: none;
    text-align: center;
    font-size: 2rem;
    margin-top: 15vh;
}