#overlay{
    position: relative;
    margin-left: 20%;
    top: 12.5%;
    border-radius: 25px;
    width: 60%;
    height: 75%;
    background-image: linear-gradient(#999B8E ,white 65%);
    text-align: center;
    border: solid white 3px;
    box-shadow: 0 0 10pt 5pt #37383275;
}

#overlayUp{
    background-color: #2C3338;
    border-radius: 25px 25px 0px 0px;
    width: 100%;
    height: 15%;
    font-size: 200%;
    line-height: 250%;
    color: white;
}

#overlayDown{
    position: relative;
    border-radius: 0px 0px 25px 25px;
    width: 100%;
    top: 55%;
    background-color: white;
}

.startBtn {
    display: inline-block;
    margin-top: 3%;
    font-size: 100%;
    text-align: center;
    outline: none;
    color: #fff;
    background-color:#2C3338;
    border: solid;
    border-color: white;
    border-width: 7px;
    border-radius: 100%;
    height: 14vh;
    /*width: 9vw;*/
    box-shadow: 0 0 0pt 1pt #2C3338;
}

.hiddenBtn{
    position: absolute;
    left: 50%;
    opacity: 0;
}

.introCircle{
    position: absolute;
    height: 7vw;
    width: 7vw;
    border-radius: 50%;
    background: white;
}
.introCircle.first { animation: first 15000ms infinite; }
.introCircle.second { animation: second 15000ms infinite; }
.introCircle.third { animation: third 15000ms infinite; }

.introSign{
    position: absolute;
    right: 50%;
    top: 75%;
    width: 4vw;
}


@keyframes first {
    0% { opacity: 0; }
    3% { opacity: 1; }
    30% { opacity: 1; }
    33% { opacity: 0; }
    100% { opacity: 0; }
}
@keyframes second {
    0% { opacity: 0; }
    30% { opacity: 0; }
    33% { opacity: 1; }
    63% { opacity: 1; }
    66% { opacity: 0; }
    100% { opacity: 0; }
}
@keyframes third {
    0% { opacity: 1; }
    3% { opacity: 0; }
    63% { opacity: 0; }
    66% { opacity: 1; }
}

#locker{
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
}

.lockCard{
    margin-top: 70vh;
    margin-left: calc(50% - 125px);
    width: 250px;
    border: solid 1px;
    border-radius: 4px;
}