body {
    font-family: sans-serif;
}

input[type=text],
input[type=password],
input[type=search],
input[type=date],
select {
    width: 15em;
    max-width: 15em;
    border: 2px solid #999;
    border-radius: 0.5em;
    font-size: 1em;
    font-family: inherit;
}

button {
    border: 2px solid;
    padding: 5px;
    border-radius: 0.5em;
    font-size: 1em;
    box-shadow: 2px 2px #999;
}

.btn-link {
    border: none;
    outline: none;
    background: none;
    cursor: pointer;
    color: #0000EE;
    padding: 0;
    text-decoration: underline;
    font-size: inherit;
    font-family: inherit;
    max-width: 100%;
    box-shadow: none;
}

.runderrahmen {
    border: 2px solid #999;
    border-radius: 0.5em;
    max-width: 35em;
    padding: 10px;
    text-align: center;
    margin: auto;
}

.ring {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 150px;
    height: 150px;
    background: #e9e9e9;
    border: 3px solid #3c3c3c;
    border-radius: 50%;
    text-align: center;
    line-height: 30px;
    font-family: sans-serif;
    font-size: 15px;
    color: #00f;
    letter-spacing: 4px;
    text-shadow: 0 0 10px #fff000;
    box-shadow: 0 0 20px rgba(0, 0, 0, .5);
}

.ring:before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    width: 100%;
    height: 100%;
    border: 3px solid transparent;
    border-top: 3px solid #fff000;
    border-right: 3px solid #fff000;
    border-radius: 50%;
    animation: animateC 2s linear infinite;
}

span.ring2 {
    display: block;
    position: absolute;
    top: calc(50% - 2px);
    left: 50%;
    width: 50%;
    height: 4px;
    background: transparent;
    transform-origin: left;
    animation: animate 2s linear infinite;
}

span.ring2:before {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: #fff000;
    top: -6px;
    right: -8px;
    box-shadow: 0 0 20px #fff000;
}

@keyframes animateC {
    0% {
        transform: rotate(0deg);
    }

    100% {
        transform: rotate(360deg);
    }
}

@keyframes animate {
    0% {
        transform: rotate(45deg);
    }

    100% {
        transform: rotate(405deg);
    }
}

.overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 999;
}