body, html {
    height: 100%;
}

* {
    box-sizing: border-box;
}

.button-input {
    position: relative;
    color: white;
    font-size: 40px;
    display: inline-block;
    width: 33.333333333333333%;
    text-align: center;
    height: 25%;
    cursor: pointer;
}

.buttons-operators .button-input {
    width: 100%;
    height: 20%;
}

.button-input span {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.parenthesis {
    width: 100%;
    height: 20%;
}

.parenthesis .button-input {
    width: 50%;
    height: 100%;
}

.button-input.parenthesis div {
    display: inline-block;
    width: 50%;
    position: relative;
    height: 100%;
    font-size: 40px;
}

.container {
    height: 100%;
    background: #1F1F1F;
    width: 100%;
    z-index: 0;
    padding: 0;
    margin: 0;
    max-width: none;
    display: block;
}

.buttons-container {
    position: absolute;
    bottom: 0;
    display: block;
    font-size: 0;
    width: 100%;
    height: 60%;
    line-height: 0;
    z-index: 0;
}

.buttons-numbers {
    display: inline-block;
    width: 75%;
    height: 100%;
    background: #000;
    vertical-align: top;
}

.buttons-operators {
    display: inline-block;
    width: 25%;
    height: 100%;
    background: #232323;
}

.display-container {
    height: 40%;
    top: 0;
    position: absolute;
    width: 100%;
    z-index: 0;
}

.display {
    text-align: right;
    color: white;
    font-size: 70px;
    position: absolute;
    width: 94%;
    left: 50%;
    top: 50%;
    overflow: auto;
    line-height: initial;
    transform: translate(-50%, -50%);
    -webkit-transition: font 0.3s ease;
    -moz-transition: font 0.3s ease;
    -o-transition: font 0.3s ease;
    -ms-transition: font 0.3s ease;
    transition: font 0.3s ease;
}

.display.big {
    font-size: 60px;
}

.display.medium {
    font-size: 50px;
}

.display.small {
    font-size: 40px;
}

.clears-buttons-container {
    position: absolute;
    bottom: 10px;
    right: 10px;
    height: 60px;
    width: 130px;
    display: block;
    font-size: 0;
    line-height: 0;
}

.clears-buttons-container div, .expand-buttons div {
    width: 60px;
    height: 60px;
    display: inline-block;
    border-radius: 50%;
    vertical-align: top;
    background: #424242;
    font-size: 16px;
    line-height: 60px;
    text-align: center;
    color: white;
    font-weight: 600;
    opacity: 0;
    cursor: pointer;

    -webkit-transition: all 0.3s ease;
    -moz-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    -ms-transition: all 0.3s ease;
    transition: all 0.3s ease;
}

.clears-buttons-container.show div {
    opacity: 1;
}

#sup {
    margin-right: 10px;
}

.expand-buttons {
    position: absolute;
    top: calc( 40% - 40px );
    left: 50%;
    transform: translateX( -50% );
    width: 35px;
    height: 35px;
    z-index: 2;

    -webkit-transition: all 0.3s ease;
    -moz-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    -ms-transition: all 0.3s ease;
    transition: all 0.3s ease;
}

.expand-buttons svg {
    -webkit-transition: all 0.3s ease;
    -moz-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    -ms-transition: all 0.3s ease;
    transition: all 0.3s ease;
}

.container.history .expand-buttons {
    top: calc( 100% - 40px );
}

.container.history .expand-buttons svg {
    transform: rotate( 180deg );
}

.main-history {
    width: 100%;
    height: 100%;
    position: absolute;
    background: #1F1F1F;
    z-index: 1;
    top: -100%;

    -webkit-transition: all 0.3s ease;
    -moz-transition: all 0.3s ease;
    -o-transition: all 0.3s ease;
    -ms-transition: all 0.3s ease;
    transition: all 0.3s ease;
}

.container.history .main-history {
    top: 0;
}

.day-container {
    color: white;
    border-bottom: 1px solid rgba(97,97,97,0.5);
    padding: 10px;
    line-height: initial;
}

.day-container:last-child {
    border-bottom: none;
}

.day-container .title {
    color: #ffc107;
    font-weight: 600;
    font-size: 12px;
}

.day-container .calcul-container {
    text-align: right;
    padding: 3px 0;
    font-size: 25px;
    color: white;
    font-family: sans-serif;
}

.day-container .calcul-container .operation {
    overflow: auto;
}

.day-container .calcul-container .result {
    color: #9e9e9e;
}

.delete-history-container {
    background: black;
    height: 40px;
    width: 100%;
    font-size: 17px;
    color: white;
    text-align: center;
    line-height: 40px;
}

.delete-history-container span {
    font-size: 28px;
}

.delete-history-container #delete-history {
    position: absolute;
    right: 10px;
    top: 0;
    line-height: 40px;
    color: #9e9e9e;
    cursor: pointer;
}

.history-container {
    height: calc( 100% - 40px );
    overflow: auto;
}

@media screen and ( min-width: 1020px ) {

    .calculator-container {
        display: inline-block;
        height: 100%;
        width: 60%;
        line-height: 0;
        position: absolute;
        font-size: 0;
    }

    .main-history {
        display: inline-block;
        position: relative;
        width: 40%;
        top: 0;
        line-height: 0;
        height: 100%;
        vertical-align: top;
        font-size: 0;
    }

    .history-container {
        background-color: #161616;
    }

    .expand-buttons {
        display: none;
    }

    .container {
        overflow: hidden;
    }

}