.buttonCss{
	height: 9vh;
    color: #1f1f1f;
    font-size: 2.8vw;
    font-weight: bold;
    text-align: center;
    margin-top: 1vh;
    margin-bottom: 1vh; 
    border-radius: 2vh; 
    overflow: hidden;
    user-select: none;
    background-position: center;
    background-repeat: no-repeat;    
    box-shadow: 0.1vh 0.1vh black; 
}
/* .zeroBtn{
    left: 4vw;
}
.clearBtn{
    left: 2vw;
} */

.glyphicon {
    top: 0px;
    line-height: inherit;
}

.glyphicon {
    display: inline-block;
    font-family: 'Glyphicons Halflings';
    font-style: normal;
    font-weight: 400;
    /* line-height: 1; */
}

.glyphiColor {
    color: #1f1f1f;
    font-size: 5vh;
}