@import url('http://fonts.cdnfonts.com/css/common-pixel');

.input-screen
{ 
    background-color: rgb(195, 247, 247);
    font-size: 2vw;
}

.calculator-area 
{
    width:600px;
    margin: 5%;
    background-color: #dfdddd;
}

.history-screen
{
    background-color: #c7c7c7;
    font-size: 1.6vw;
    max-width: 280px;
}

.logo
{
    font-family: 'Common Pixel', sans-serif;
}
.row 
{
    margin: 10px;
}

.btn 
{
    margin: 5px;
    font-size: xx-large;
}

.reset 
{
    font-size: 10px;
    font-weight:bolder;
}

.mod
{
    font-size: medium;
    font-weight:bolder;
}

.btn-outline-secondary {
    background: linear-gradient(to right, #000000 0%, #000000 50%, #ffffff 50%, #ffffff 100%);
    background-size: 200% 100%;
    background-position: 100% 0;
    transition: background-position 0.1s;
    -webkit-transition: all 1s;
    -moz-transition: all 1s;
    transition: all 1s;
    color:#000000;
}

.btn-outline-secondary:hover {
    background-position:0 0;
}

.btn-outline-secondary:focus {
    color:#000000;
}

.btn-outline-danger {
    background: linear-gradient(to right, #f87171 0%, #f87171 50%, #ff0000 50%, #ff0000 100%);
    background-size: 200% 100%;
    background-position: 100% 0;
    transition: background-position 0.1s;
    -webkit-transition: all 1s;
    -moz-transition: all 1s;
    transition: all 1s;
    color:#000000;
}

.btn-outline-danger:hover {
    background-position:0 0;
}

.btn-outline-danger:focus {
    color: white;
}