html, body {
	height: 100%;
	width: 100%;
	left: 0;
	top: 0;
	right: 0;
	bottom: 0;
	background-color: rgb(231, 231, 231); 
    overflow:auto; 
}

.navbar {
    padding-top: 0px;
    padding-bottom: 0px;
    border: 0;
    border-radius: 0;
    margin-bottom: 0;
    font-size: 12px;
    letter-spacing: 2px;
    background: #006eba;
}

.navbar-nav li a:hover {
    color: #6f6f6f;
}

.login_check {
    position: absolute;
    display: flex;
    top:0px;
    right:0px;
    margin-top: 10px;
}

.login_check_item {
    margin-right: 20px;
}


.index_button_img {
    width: 280px;
    height: auto;
}

.index_right_img {
    margin-top: 50px;
    width: 650px;
    height: auto;
}

/*
.index_container {
    display: flex;
    justify-content: center;
    flex-direction: column;
    width: 100%;
    height: 100%;
    align-items: center;
}

.index_item_container {
    display: flex;
    justify-content: center;
    flex-direction: row;
    width: 100%;
    height: 100%;
    align-items: center;
}

.index_item_container2 {
    display: flex;
    justify-content: center;
    flex-direction: column;
    width: 100%;
    height: 100%;
    align-items: center;
}

*/
.index_item {
    width: 100%;
    height: auto;
    cursor: pointer;
    display: flex;
    justify-content: center;
}

.index_item img:last-child{display:none} 
.index_item:hover img:first-child{display:none} 
.index_item:hover img:last-child{display:inline-block}

.mainlc_title {
    width: 300px;
    height: auto;
}

.table > tbody > tr > td {
    vertical-align: middle;
}