.main {
    background: #f8f8f8 url(superhero.png) no-repeat;
    width: 800px;
    height: 450px;
    margin: 50px auto;
    -moz-box-shadow: 0 3px 3px rgba(255,255,255,.1), 0 3px 0 #bbb, 0 4px 0 #aaa, 0 5px 5px #444;
    -webkit-box-shadow: 0 3px 3px rgba(255,255,255,.1), 0 3px 0 #bbb, 0 4px 0 #aaa, 0 5px 5px #444;
    box-shadow: 0 3px 3px rgba(255,255,255,.1), 0 3px 0 #bbb, 0 4px 0 #aaa, 0 5px 5px #444;
    -moz-border-radius: 10px;
    -webkit-border-radius: 10px;
    border-radius: 10px;
}

.panel {
    height: 34px;
    padding: 10px;
}

    .panel a#login_pop, .panel a#join_pop {
        border: 2px solid #07839f;
        color: #fff;
        background-color: #0483a0;
        background-image: -webkit-gradient(linear, left top, left bottom, from(#31b2c3), to(#0483a0));
        background-image: -webkit-linear-gradient(top, #31b2c3, #0483a0);
        background-image: -moz-linear-gradient(top, #31b2c3, #0483a0);
        background-image: -ms-linear-gradient(top, #31b2c3, #0483a0);
        background-image: -o-linear-gradient(top, #31b2c3, #0483a0);
        background-image: linear-gradient(top, #31b2c3, #0483a0);
        display: block;
        float: right;
        margin-right: 10px;
        padding: 5px 10px;
        text-decoration: none;
        text-shadow: 1px 1px #000;
        -webkit-border-radius: 10px;
        -moz-border-radius: 10px;
        -ms-border-radius: 10px;
        -o-border-radius: 10px;
        border-radius: 10px;
    }

a#login_pop:hover, a#join_pop:hover {
    border-color: #31b2c3;
    background: #31b2c3;
}

.overlay {
    background-color: rgba(0, 0, 0, 0.6);
    bottom: 0;
    cursor: default;
    left: 0;
    opacity: 0;
    position: fixed;
    right: 0;
    top: 0;
    visibility: hidden;
    z-index: 1;
    -webkit-transition: opacity .5s;
    -moz-transition: opacity .5s;
    -ms-transition: opacity .5s;
    -o-transition: opacity .5s;
    transition: opacity .5s;
}

    .overlay:target {
        visibility: visible;
        opacity: 1;
    }

.popup h2 {
    color: #07839f;
    line-height: 1.8em;
}

.popup {
    background-color: #fff;
    border: 3px solid #fff;
    display: inline-block;
    left: 50%;
    color: #666;
    opacity: 0;
    padding: 15px;
    position: fixed;
    text-align: justify;
    top: 40%;
    visibility: hidden;
    z-index: 9999;
    -webkit-transform: translate(-50%, -50%);
    -moz-transform: translate(-50%, -50%);
    -ms-transform: translate(-50%, -50%);
    -o-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
    -webkit-border-radius: 10px;
    -moz-border-radius: 10px;
    -ms-border-radius: 10px;
    -o-border-radius: 10px;
    border-radius: 10px;
    -webkit-box-shadow: 0 1px 1px 2px rgba(0, 0, 0, 0.4) inset;
    -moz-box-shadow: 0 1px 1px 2px rgba(0, 0, 0, 0.4) inset;
    -ms-box-shadow: 0 1px 1px 2px rgba(0, 0, 0, 0.4) inset;
    -o-box-shadow: 0 1px 1px 2px rgba(0, 0, 0, 0.4) inset;
    box-shadow: 0 1px 1px 2px rgba(0, 0, 0, 0.4) inset;
    -webkit-transition: opacity .5s, top .5s;
    -moz-transition: opacity .5s, top .5s;
    -ms-transition: opacity .5s, top .5s;
    -o-transition: opacity .5s, top .5s;
    transition: opacity .5s, top .5s;
}

.overlay:target + .popup {
    top: 50%;
    opacity: 1;
    visibility: visible;
}

.close {
    background-color: #474747;
    height: 30px;
    line-height: 30px;
    position: absolute;
    right: 0;
    text-align: center;
    text-decoration: none;
    top: 0px;
    width: 30px;
    -webkit-border-radius: 15px;
    -moz-border-radius: 15px;
    -ms-border-radius: 15px;
    -o-border-radius: 15px;
    border-radius: 15px;
}

    .close:before {
        color: #ffffff;
        content: "X";
        font-size: 24px;
        text-shadow: 0 -1px rgba(0, 0, 0, 0.9);
    }

    .close:hover {
        background-color: rgba(64, 128, 128, 0.8);
    }

.popup p, .popup div {
    margin-bottom: 10px;
}