.hidden {
    display: none;
}

.clear {
    clear: both;
}

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

.green {
	color:green;
}

.red {
	color:red;
}

.grey {
	color:#aaa;
}

.block-center {
    margin-left:auto;
    margin-right:auto;
}

.padding-15 {
    padding:15px;
}

.table-sm td, .table-sm th {
    font-size:0.9em;
}

.invalid {
    border:1px solid red !important;
}

.error-message {
    color:red;
}