.rap a {
    color: #138cd6;
    }
.demoimg{
	width:160px;
	}
.demoimg p{
	text-align:center;
	}
	.mr50{
		margin-right:50%;
		}
	.ml50{
		margin-left:20%;
		margin-top:5%;
		}
ul.down-tab {
    display: flex;
    padding: 0;
    margin: 0 auto;
    text-align: center;
}
ul.down-tab li {
    list-style: none;
    display: inline-block;
    width: 50%;
    margin: 0;
    margin-right: 5px;
    border: 0;
}
ul.down-tab li a {
    display: block;
    padding: 10px 0px;
    color: #fff;
    font-size: 25px;
    background-color: #0879b8;
    text-align: center;
    border: 1px solid #0879b8;
}
ul.down-tab li.active a {
    background-color: #fff;
    text-decoration: none;
    position: relative;
    color: #0879b8;
    border: 1px solid #0879B8;
    pointer-events: none;
}
ul.down-tab li.active a:after {
    content: '';
    display: inline-block;
    height: 4px;
    position: absolute;
    background-color: #fff;
    left: 0;
    right: 0;
    bottom: -4px;
}