img {
    border: none;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Microsoft YaHei", "寰蒋闆呴粦", sans-serif;
}

ol,
ul,
li {
    list-style: none;
}

.F-left {
    float: left;
}

.F-right {
    float: right;
}

a:hover {
    text-decoration: none;
    color: #337ab7;
}

.btn {
    border: 0px;
    border-radius: 0px;
}

.navbar {
    border: 0px;
    margin: 0;
    min-height: 0;
}

.navbar-default .navbar-collapse,
.navbar-default .navbar-form {
    border-color: #fff;
}

.navbar-default {
    background: transparent;
    border-color: #fff;
}


.navigator-arrow {
    padding-right: 20px;
    position: relative;
}
.navigator-arrow1 {
    padding-right: 20px;
    position: relative;
}
.navigator-arrow:after {
    display: inline-block;
    content: " ";
    height: 10px;
    width: 10px;
    border-width: 0 1px 1px 0;
    border-color: #999;
    border-style: solid;
    transform: matrix(0.71, 0.71, -0.71, 0.71, 0, 0);
    position: absolute;
    top: 50%;
    right: 0;
    margin-top: -8px;
}

.navigator-arrow1:after {
    display: inline-block;
    content: " ";
    height: 10px;
    width: 10px;
    border-width: 1px 0 0 1px;
    border-color: #999;
    border-style: solid;
    transform: matrix(0.71, 0.71, -0.71, 0.71, 0, 0);
    position: absolute;
    top: 50%;
    right: 0;
    margin-top: -2px;
}