.startBtnDiv {
    background: #696969;
    border-style: solid;
    border-color: #000000;
    color: white;
    width: 25%;
    margin: auto;
    padding: 5px;
    margin-top: 25px;
    font-size: 4vw;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

#startOverlay {
    position: fixed;
    display: block;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: #FFFFFF;
    z-index: 2;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.toolbarIcon {
    padding-right: 2%;
    padding-left: 2%;
    width: 3%;
    height: auto;
    cursor: pointer;
    /*transition: width 0.4s;*/
    transition: all 0.5s ease-out allow-discrete
}

.modal {
    position: fixed;
    z-index: 1;
    left: 0;
    top: -100%;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgb(0, 0, 0); /* Fallback color */
    background-color: rgba(0, 0, 0, 0.9);
    opacity: 0;
    transition: top 0.4s, opacity 0.4s;
}

.modal.show {
    top: 0;
    opacity: 1;
}

.modal-content {
    background-color: #fefefe;
    margin: auto;
    margin-top: 10%;
    width: 80%;
    text-align: left;
}

.modal-header {
    text-align: left;
    background-color: #424242;
    color: white;
    padding: 5px;
    font-size: 3vh;
}

.modal-close {
    color: #aaaaaa;
    float: right;
    font-size: 3vh;
    font-weight: bold;
}

.modal-close:hover, .modal-close:focus {
    color: #000;
    text-decoration: none;
    cursor: pointer;
}

#modal-content-text {
    font-size: 1.25rem;
    padding: 10px;
}

#calcBodyDiv {
    margin: auto;
    border-radius: 15px;
    background-color: #C0C0C0;
    background-image: linear-gradient(90deg, #e6ebee, #f0f0f0);
    box-shadow: 0px 0px 0px 0px #b1b8c0 inset,
        0px -10px 10px 10px #b1b8c0 inset,
        0px 1px 0px 2px #b1b8c0 inset,
        0 55px 10px -25px rgba(0,0,0,0.1),
        0 65px 30px -10px rgba(0,0,0,0.5);
    padding: 20px;
    width: 90%;
    height: 60%;
    touch-action: none;
}

.dateDiv {
    display: block;
    color: black;
    min-height: 20px;
    text-align: left;
    padding: 5px;
    font-size: 2vw;
}

.equationDiv {
    width: 100%;
    min-height: 20px;
}

.numDiv {
    background: #000;
    color: #FFFFFF;
    display: inline-block;
    width: 30%;
    min-height: 20px;
    font-size: 5vw;
    /*transition:  border-width 0.6s linear;*/
    transition: border 1s ease;
    /*box-shadow: 1px 1px 5px #000000 inset;*/
}

.equalDiv {
    color: #000000;
    display: inline-block;
    width: 10%;
    min-height: 20px;
    transition: opacity .5s ease-in-out;
}

.fullBarDiv {
    display: flex;
    width: 80%;
    margin: auto;
    min-height: 20px;
    background: #696969;
    border-radius: 5px;
}

.progBarDiv {
    background: #66ff00;
    border-radius: 5px;
    width: 100%;
}

.opsBarDiv {
    display: flex;
    margin: auto;
    padding: 5px;
    justify-content: space-around;
    width: 80%;
    margin-top: 10px;
}

.opDiv {
    display: flex;
    width: 20vw;
    height: 20vw;
    background: #696969;
    color: #000000;
    font-size: 8vw;
    justify-content: center;
    align-items: center;
    /*box-shadow: -8px -8px 15px rgba(255, 255, 255, 0.5), 5px 5px 15px rgba(0, 0, 0, 0.5);*/
    -webkit-user-select: none;
    -webkit-touch-callout: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.resetDiv {
    background: #696969;
    /*border-style: solid;*/
    /*border-color: #000000;*/
    color: white;
    width: 25%;
    margin: auto;
    padding: 5px;
    margin-top: 10px;
    font-size: 4vw;
    /*box-shadow: -8px -8px 15px rgba(255, 255, 255, 0.5), 5px 5px 15px rgba(0, 0, 0, 0.5);*/
    -webkit-user-select: none;
    -webkit-touch-callout: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.opDiv.unpressed, .resetDiv.unpressed, .startBtnDiv.unpressed {
    box-shadow: -8px -8px 15px rgba(255, 255, 255, 0.5), 5px 5px 15px rgba(0, 0, 0, 0.5);
}

.timeDiv {
    color: #000000;
    margin-top: 10px;
    margin-bottom: 5px;
    font-size: 2vw;
    min-height: 25px;
}

#shareSnackbar {
    visibility: hidden;
    z-index: 2;
    background-color: #333;
    color: #fff;
    text-align: center;
    position: fixed;
    left: 50%;
    bottom: 2%;
    transform: translateX(-50%);
    padding: 5px;
    border-radius: 5px;
    opacity: 0;
    transition: opacity 0.5s;
    font-size: 2vw;
}

#shareSnackbar.show {
    /*visibility: visible;*/
    /*-webkit-animation: fadein 0.5s, fadeout 0.5s 2.5s;*/
    /*animation: fadein 0.5s, fadeout 0.5s 2.5s;*/
    visibility: visible;
    opacity: 1;
}

/* Animations */
@keyframes wave {
    0%, 100% {
        transform: scaleY(1);
    }
    50% {
        transform: scaleY(1.1);
        background-color: green;
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scaleY(1);
    }
    50% {
        transform: scaleY(1.5);
        color: green;
    }
}

@keyframes fadeIn {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}

@keyframes fadeOut {
    0% {
        opacity: 1;
    }
    100% {
        opacity: 0;
    }
}

/*@-webkit-keyframes fadein {*/
/*    from {bottom: 0; opacity: 0;} */
/*    to {bottom: 30px; opacity: 1;}*/
/*}*/

/*@keyframes fadein {*/
/*    from {bottom: 0; opacity: 0;}*/
/*    to {bottom: 30px; opacity: 1;}*/
/*}*/

/*@-webkit-keyframes fadeout {*/
/*    from {bottom: 30px; opacity: 1;} */
/*    to {bottom: 0; opacity: 0;}*/
/*}*/

/*@keyframes fadeout {*/
/*    from {bottom: 30px; opacity: 1;}*/
/*    to {bottom: 0; opacity: 0;}*/
/*}*/