body{
	font-family: 'Roboto Condensed', 'Roboto', Sans serif;
	color: #4e4e4e;
}

.custom-expression >
.error-message{
	color: #ff0000;
}


/* display list style */
.custom-expression-list{
	padding: 0px;
	border: thin solid #aaa;
	display: flex;
	justify-content: flex-start;
	align-items: center;
	align-content: flex-start;
	/* min-height: 100px; */
	flex-wrap: wrap;
}

.custom-expression-list >
.custom-expression-list-item{
	display: inline-block;
	padding: 5px 15px;
	/*margin: 5px 0 5px 10px;*/
}

.custom-expression-list >
.item-between {
	width: 5px;
	height: 40px;
	cursor: text;
}

.custom-expression-list >
.item-between:hover {
	width: 5px;
	/* background-color: #2ECC71; */
	/* border-bottom: thin solid #2ECC71; */
	/* border-left: thin solid #2ECC71; */
}

.custom-expression-list >
.item-between:hover:before {
	content: '';
	display: inline-block;
	width: 2.5px;
	height: 100%;
	/* background-color: #2ECC71; */
	/* border-bottom: thin solid #2ECC71; */
	border-right: thin solid #2ECC71;
}


.custom-expression-list >
.custom-expression-list-item.input{
	display: inline-block;
	padding: 0;
	margin: 0;
	min-width:  50px;
	/* border: 1px solid red; */
	/* width: 20px; */
	overflow: visible;
}

.custom-expression-list >
.custom-expression-list-item.item{
	border-radius: 3px;
	background-color: #aaa;
	color: #fff;
	line-height: 25px;
	/* font-size: 18px; */
}

.custom-expression-list >
.custom-expression-list-item.item.number,
.custom-expression-list >
.custom-expression-list-item.item.operator{
	color: #00ACC1;
	border-radius: 0;
	background-color: inherit;
	padding: 5px 0;
	font-size: 20px;
	margin-left: -3px;
}

.custom-expression-list >
.custom-expression-list-item.item.operator{
	color: #2ECC71;
	border-radius: 0;
	background-color: inherit;
	font-size: 25px;
	/* font-weight: bold; */
	font-family: 'Roboto';
}




.custom-expression-list >
.custom-expression-list-item.item >
span{
	/* margin: 0px 5px; */
}

.custom-expression-list >
.custom-expression-list-item.item >
i{
	cursor: pointer;
}

/* input list style */
.custom-expression-list-item.input >
.custom-expression-input-list{
	display: none;
	position: absolute;
	list-style: none;

	min-width: 150px;
	max-height: 160px;

	overflow-y: scroll;
	overflow-x: hidden;

	padding: 0px;

	background-color: #fff;

	box-shadow: 5px 5px 10px #aaa;

	z-index: 2;
}

.custom-expression-list-item.input >
.custom-expression-input-list >
.custom-expression-input-list-item{
	padding: 10px;
}

.custom-expression-list-item.input >
.custom-expression-input-list >
.custom-expression-input-list-item:hover,
.custom-expression-list-item.input >
.custom-expression-input-list >
.custom-expression-input-list-item.active{
	cursor: pointer;

	background-color: #aaa;

	color: #fff;
}

.custom-expression-list-item.input >
.custom-expression-input >
.custom-expression-input-text{
	border: none;
	outline: none;
	box-shadow: none;
	margin: 0;
	line-height: 25px;
	font-size: 25px;
	cursor: text;
	width: 50px;
	border-bottom: 2px solid #2ECC71;
	margin-bottom:  3px;
	margin-right: 10px;
}