.table_teclado {
	width: 100%;
}

.table_teclado tr td
{
	background: #828282;
    color: #FFF;
    cursor: pointer;
    border-radius: 10px;
    font-family: sans-serif;
    font-size: 1.5em;
    border: 2px solid #fff;
    max-width: 10px;
    position: relative;
    padding: 20px;
}

.table_teclado tr td:hover
{
	background: #525252;
}

.btn_delete
{
	position: absolute;
	bottom: 1em;
    width: 25px;
}