* {
    color: #fff;
    font-size: 1.2rem;
    font-family: -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol","Noto Color Emoji";
    font-weight: 400;
    line-height: 1.5;
    text-align: left;
}
html, body {
    background-color: #454a59;
    margin: 0;
    height: 100%;
}
.wrapper {
  display: flex;
  flex-flow: column;
  height: 100%;
}

.block {
    flex-grow: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}
.line {
    border: 5px solid black;
    border-radius: 5px;
    margin: 5px;
}
.outside {
    align-self: flex-end;
    position: absolute;
    left: 15px;
}
.inside {
    align-self: flex-start;
    position: absolute;
    left: 15px;
}

.error {
    position: absolute;
    background-color: rgba(255,0,0,.8);
    left: 5px;
    right: 5px;
    padding: 5px;
    transition: opacity .2s linear;
    border-radius: 5px;
    bottom: 10px;
    opacity: 0;
}
.error.show {
    opacity: 1;
}

.host {
    z-index: 1000;
    padding: 5px;
    padding-bottom: 0;
}
.host select {
    color: black;
    width: 100%;
}

.pulsating-circle {
    position: relative;
    width: 70px;
    height: 70px;
}
.pulsating-circle:before {
    content: '';
    position: relative;
    display: block;
    width: 300%;
    height: 300%;
    box-sizing: border-box;
    margin-left: -100%;
    margin-top: -100%;
    border-radius: 100px;
    background-color: #01a4e9;
    display: none;
}

.pulsating-circle:after {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    display: block;
    width: 100%;
    height: 100%;
    background-color: white;
    border-radius: 35px;
    box-shadow: 0 0 8px rgba(0,0,0,.3);
}

.pulsating-circle.pulse {
    display: block;
}

.pulsating-circle.pulse:before {
    animation: pulse-ring 1.25s cubic-bezier(0.215, 0.61, 0.355, 1) infinite;
    display: block;
}

@keyframes pulse-ring {
    0% {
        transform: scale(.33);
    }
    80%, 100% {
        opacity: 0;
    }
}