* {
    border: 0;
    padding: 0;
    margin: 0;
}

.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.martop5 {
    margin-top: 5px;
}

.martop10 {
    margin-top: 10px;
}

.tool {
    height: 8vh;
    border: 1px;
    border-radius: 0px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, .12), 0 0 6px rgba(0, 0, 0, .04)
}