.box {
    /* margin: 0px auto; */
	position: fixed;
	width: 100%;
	    margin-top: 8px;
    /* width: 500px; */
    /* margin-top: 70px; */
}
* {
    margin: 0;
    padding: 0;
}
em {
    font-style: normal;
}
.dropdown {
    width: 150px;
	float: left;
	margin-left: 10px;
}
.dropdown button {
    width: 100%;
    text-align: left;
    border: solid 1px #969696;
    background: #fff0 !important;
    border-radius: 3px;
    height: 32px;
}
.dropdown button i {
    float: right;
    margin-top: 8px;
}
.dropdown ul {
    width: 100%;
	height: 500px;
}
.dropdown ul input {
    height: 28px;
    padding: 3px 10px;
    border: 1px solid #ccc;
    border-radius: 15px;
    width: 100%;
}
.dropdown-menu li:first-child {
    position: relative;
    padding: 5px 10px;
}
.dropdown-menu li:first-child i {
    position: absolute;
    top: 12px;
    right: 5px;
    /* font-size: 10px; */
    /* display: block; */
    /* float: left; */
    width: 16px;
    height: 16px;
    margin-right: 12px;
    background: url(../images/sou.png) center center no-repeat;
    /* transition: .5s all linear; */
}