.calculator {
    background: -moz-linear-gradient(15deg, rgb(204, 204, 204), rgb(255, 255, 255), rgb(204, 204, 204)) repeat scroll 0 0 rgb(238, 238, 238);
    border-color: rgb(238, 238, 238) rgb(204, 204, 204) rgb(170, 170, 170) rgb(221, 221, 221);
    border-style: solid;
    border-width: 2px;
    font-family: Arial;
    height: auto;
    margin: 7px auto;
    padding: 5px;
    width: 214px;
}
.calculator span {
    background: none repeat scroll 0 0 rgba(40, 124, 132, 0.1);
    border: 1px solid rgb(100, 152, 192);
    color: rgb(67, 105, 141);
    cursor: pointer;
    display: block;
    float: left;
    font-size: 14px;
    font-weight: bold;
    height: 22px;
    line-height: 22px;
    margin: 4px;
    text-align: center;
    vertical-align: middle;
    width: 32px;
}
.calculator span:hover {
}
.calculator span:active {
}
.calculator:after {
    clear: left;
    content: "";
    display: block;
    height: 0;
    width: 100%;
}
.calculator span sup {
    font-size: 0.5em;
    line-height: 10px;
}
.calculator span#eq {
    float: right;
    height: 52px;
    line-height: 52px;
}
.calculator #view {
    background: none repeat scroll 0 0 rgb(255, 255, 255);
    border-color: rgb(170, 170, 170) rgb(204, 204, 204) rgb(238, 238, 238) rgb(221, 221, 221);
    border-style: solid;
    border-width: 3px;
    color: rgb(0, 0, 0);
    font-size: 20px;
    height: 40px;
    line-height: 20px;
    margin-bottom: 2px;
    padding: 8px;
    text-align: right;
    vertical-align: middle;
    width: 200px;
}
.calculator span#del {
    float: right;
    width: 72px;
}
.calculator span#bs {
    float: left;
    width: 112px;
}
.calculator span:nth-child(3) {
    clear: right;
}