body { padding: 0; margin: 0 }
#unity-container { position: absolute }
#unity-container.unity-desktop { left: 50%; top: 50%; transform: translate(-50%, -50%) }
#unity-container.unity-mobile { position: fixed; width: 100%; height: 100% }
#unity-canvas { background: #1F1F20 }
.unity-mobile #unity-canvas { width: 100%; height: 100% }
#unity-loading-bar { position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%); display: none }
#unity-logo { width: 154px; height: 130px; background: url('unity-logo-dark.png') no-repeat center }
#unity-progress-bar-empty { width: 141px; height: 18px; margin-top: 10px; margin-left: 6.5px; background: url('progress-bar-empty-dark.png') no-repeat center }
#unity-progress-bar-full { width: 0%; height: 18px; margin-top: 10px; background: url('progress-bar-full-dark.png') no-repeat center }
#unity-footer { position: relative }
.unity-mobile #unity-footer { display: none }
#unity-webgl-logo { float:left; width: 204px; height: 38px; background: url('webgl-logo.png') no-repeat center }
#unity-build-title { float: right; margin-right: 10px; line-height: 38px; font-family: arial; font-size: 18px }
#unity-fullscreen-button { cursor:pointer; float: right; width: 38px; height: 38px; background: url('fullscreen-button.png') no-repeat center }
#unity-warning { position: absolute; left: 50%; top: 5%; transform: translate(-50%); background: white; padding: 10px; display: none }
.keyboard {
    position: relative;
    left: 0px;
    width: 750px;
    height: 375px;
}
.how-to { 
    display:block; 
    width: 800px; 
    max-width: 100%; 
    height: 500px;
    position: fixed;
    z-index: 100;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    background: white;
    box-shadow: 0 0 80px 20px rgba(0, 0, 0, 0.9);
}
.closed{
    display: none;
}
.how-to-play{
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 50;
    background: rgba(0, 0, 0, 0.6);
}
.explanation {
    position: absolute;
    top: 0;
    left: 0;
    width: 750px;
    height: 460px;
    overflow: auto;
    padding: 20px 20px 20px 20px;
}
.how-to .close-button {
    position: absolute;
    z-index: 1;
    top: 10px;
    right: 20px;
    border: 0;
    background: black;
    color: white;
    padding: 5px 10px;
    font-size: 1.3rem;
}
.open-button {
    border: 0;
    font-size: 21px;
}
.before_intersection {
    position: relative;
    border: solid;
    width: 350px;
    height: 219px;
}
.after_intersection {
    position: relative;
    top: -225px;
    left: 390px;
    border: solid;
    width: 350px;
    height: 219px;
}
.yoko{
    border-top: 2px solid;
}
.explain{
    text-decoration: underline solid;
}