* {
    /* border: red solid 1px; */
    margin: 0px;
    padding: 0px;
    color: white;
    text-decoration: none;
}

html {
    background: #098 url(/campus.jpg) center;
    background-size: cover;
    height: 100vh;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    font: 5.5vw 'Montserrat', "微软雅黑", sans-serif;
    font: min(6vw, 10vh) 'Montserrat', "微软雅黑", sans-serif;
}

.container {
    opacity: 0.8;
    min-width: 14em;
}

.menu {
    float: right;
    line-height: 1rem;
    font-size: 0.5em;
    opacity: 0.5;
}

hr {
    height: 0.5em;
    border: none;
}

.bar {
    display: inline-block;
    position: relative;
    width: 75%;
    height: 0.6em;
    /* background: rgba(255, 255, 255, 0.2); */
    border: 0.05em solid white;
    overflow: hidden;
    border-radius: 1em;
}

#bar {
    position: absolute;
    height: 100%;
    background: white;
}

.half {
    opacity: 0.5;
    font-size: 0.5em;
}