*,
*:after,
*:before {
	-webkit-box-sizing: border-box;
	box-sizing: border-box;
}
.menu_head{
    position: relative;
    padding: 10px;
    width: 100%;
    float: right;
    text-align: right;
    background:#08A2E9;
    background-image: linear-gradient(-45deg, #6DCEFB, #08A2E9);
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
    z-index: 3;
}
.menu-list{
    padding: 10px;
    width: auto;
    height: 40px;
    line-height: 40px;
    vertical-align: middle;
}
.menu-list:hover{
    cursor: pointer;
    background: #217C84;
    background-image: linear-gradient(-45deg, #6CBFC6, #217C84);
}
.mySP{
    padding-left: 15px;
}
.over_menu{
    width: 100%;
    height: 100%;
    opacity:0.8;/*设置背景色透明度,1为完全不透明,IE需要使用filter:alpha(opacity=80);*/
    filter:alpha(opacity=80);
    display: none;
    position:absolute;
    top:0;
    left:0;
    z-index:1;
    background: #000;
}
.div_menu{
    display:none;
    border:1px solid #687F9A;
    padding: 1px;
    z-index:2;
    background: #3B5572;
    font-size: 24px;
    border-radius: 8px;
    position: fixed;
    width: 350px;
    height: 220px; /*每项40px*/
    box-shadow: 0 0 15px rgba(82, 168, 236, 0.6);
    top: 50%;
    left: 50%;
    margin: -110px 0px 0px -175px;
    /*
    如果是position:absolute;就需要
    left: 50%; /*left是在position属性是absolute或fixed时才有效的， left: 50%;意思距离左边是界面的百分之五十，这是div的左边边界正好在画面的中间线，
    margin-left: -Xpx; 再左移框架的一半长度的距离，宽度的一半 370/2=185
    */
}

.div_img{
    margin:5px auto;
    border:5px solid #fff;
    border-radius: 4px;
}
.nav_logo {
    position: relative;
}
.nav_logo ul{
    list-style: none;
    margin-left: 30px;
    margin-top: 30px;
}
.nav_logo li{
    display: inline;
    line-height: 40px;
}

#myKey{
    width: 194px;
    margin-left:82px;
    line-height: 30px;
    font-size: 24px;
}