.h1 {
    margin: 0;
    position: absolute;
    right: 1em;
    top: 0vh;
    font-size: 7vh;
    color: black;
    text-shadow: 3px 3px red;
}

.h1 > i {
    display: none;
}

#instructions > .close {
    display: none;
}

body {
    font-family: "Modern Antiqua";
    font-size: 7vmin;
    background-image: url('zombie_graveyard1.jpg');
    background-position: center top;
    background-size: cover;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
    margin: 0;
    background-color: black;
    background-repeat: no-repeat;
}

#tips {
    color: yellow;
}

#board {
    border: 3px ridge red;
    position: absolute;
    width: auto;
    height: auto;
    left: 5vw;
    /*right: calc(24vw + 2em);*/
    top: 10vh;
    overflow: hidden;
    transform-origin: top left;
    background-color: rgba(255,255,255,0.0);
}

#board > div {
    height: 8vmin;
    white-space: nowrap;
}

#board-cover {
    opacity: 0.4;
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
}

#board > div > span {
    width: 8vmin;
    height: 8vmin;
    border-top: 4px solid #808080;
    border-left: 4px solid #808080;
    border-right: 4px solid #404040;
    border-bottom: 4px solid #404040;
    background-color: #606060;
    display: inline-block;
    transition: background-color 0.5s;
    box-sizing: border-box;
}

#board > div > span.revealed {
    border: none;
    background-color: rgba(255,255,255,0.0);
    font-size: 6vmin;
    text-align: center;
    vertical-align: top;
    color: red;
    text-shadow: 1px 1px 1px black;
    box-sizing: border-box;
}

#board > div > span > span.brain {
    color: white;
    text-shadow: 1px 1px 1px black;
    vertical-align: top;
    display: inline;
}

.flagged {
    background-image: url('bang.png');
    background-position: center;
    background-size: cover;
}

.brains {
    background-image: url('brain.png');
    background-position: center;
    background-size: cover;
}

#exploding-brain, #exploding-shotgun {
    width: 100px;
    position: absolute;
    left: 50vw;
    top: 50vh;
    transform: translate(-50%, -50%);
    transition: all 1.0s ease-out;
    opacity: 1;
    z-index: 1;
    display: none;
}

.buttonPopup {
    position: absolute;
    /*width: 50vw;*/
    left: 50%;
    top: 50%;
    padding: 2em;
    transform: translate(-50%, -50%);
    font-size: 2.5vh;
    z-index: 20;
    background-color: rgba(0,0,0,0.8);
    border-radius: 0.5em;
    box-shadow: 0.5em 0.5em 0.5em #404040;
    color: white;
    text-align: center;
    border: 1px solid red;
    /*white-space: nowrap;*/
}

.buttonPopup p {
    white-space: nowrap;
}

.buttonPopup ul {
    font-size: x-large;
}

.buttonPopup > div {
    padding: 0.5em;
    text-align: left;
}

.buttonPopup button {
    font-family: inherit;
    font-size: inherit;
    margin: 0.5em;
    border-radius: 0.25em;
}

.buttonPopup select {
    font-family: inherit;
    font-size: inherit;
    display: inline-block;
    margin-bottom: 0.25em;
    border-radius: 0.25em;
    text-align: left;
}

.buttonPopup span {
    display: inline-block;
    width: 50%;
    text-align: right;
}

#brains-score {
    position: absolute;
    left: 5vw;
    bottom: 1vw;
}

#brains-score img {
    height: 5vh;
}

#instructions {
    width: 24vw;
    position: absolute;
    top: 15vh;
    right: 1em;
    font-size: 2.3vh;
    color: white;
    text-shadow: 1px 1px 1px black;
    z-index: 25;
}