CSS .navbar滚动问题

Question

我的.navbar存在问题。在第一张图片中，我更改了文本和徽标的填充，这就是我想要的。

第一张图片

滚动悬停效果时会更改导航条的填充。

最后，真正的问题是，在向下滚动之后，.navbar填充仍然与第一张图像不同

第二张图片

我有以下css代码，我自己无法解决这个问题。我希望你们能给我一些建议。

＆＃13;

＆＃13;

.navbar-brand {
	position: relative;
	padding: 10px 0;
	margin: 0!important;
	transition: all 0.3s ease-in-out;
    -moz-transition: all 0.3s ease-in-out;
    -webkit-transition: all 0.3s ease-in-out;
    -o-transition: all 0.3s ease-in-out;
}

.navbar-default .navbar-nav {
	margin-right: 10px!important;
	position: relative;
	transition: all 0.4s ease-in-out;
    -moz-transition: all 0.4s ease-in-out;
    -webkit-transition: all 0.4s ease-in-out;
    -o-transition: all 0.4s ease-in-out;
}

.navbar-default .navbar-nav > li {
    margin-left: 6px;
}

.navbar-default .navbar-nav > li:first-child {
    margin-left: 0;
}

.navbar-default .navbar-nav > li > a {
	color: #999;
	display: block;
    font-size: 14px;
	font-weight: 300;
    padding: 28px 15px 15px 15px;
	overflow: hidden;
    transition: all 0.3s ease-in-out;
    -moz-transition: all 0.3s ease-in-out;
    -webkit-transition: all 0.3s ease-in-out;
    -o-transition: all 0.3s ease-in-out;
    font-weight: 400;
}

.navbar-default .navbar-nav > li > a.active, .navbar-default .navbar-nav > li:hover > a {
	border-bottom: 2px solid;
}

.navbar-default .navbar-nav > li > a i {
	margin: 0 -2px 0 -5px;
}

.navbar-default .navbar-nav > li > a:after {
	position: absolute;
	bottom: 0;
	content: '';
	left: 50%;
	display: block;
	height: 5px;
	width: 5px;
	opacity: 0;
	margin: 0 0 -3px -2px;
	-webkit-transform: rotate(45deg);
	-moz-transform: rotate(45deg);
	-ms-transform: rotate(45deg);
	-o-transform: rotate(45deg);
	transform: rotate(45deg);
	position: absolute;
}

.navbar-default .navbar-nav > li > a.active:after {
	opacity: 1;
}

.navbar-default .navbar-nav .dropdown {
    position: absolute;
    left: 0;
    top: 100%;
    width: 180px;
	background-color: #fff;
    visibility: hidden;
    z-index: 2;
	opacity: 0;
	transition: opacity 0.3s ease-in-out;
    -moz-transition: opacity 0.3s ease-in-out;
    -webkit-transition: opacity 0.3s ease-in-out;
    -o-transition: opacity 0.3s ease-in-out;
	box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
	-o-box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
	-moz-box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  	-webkit-box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.navbar-default .navbar-nav > li.drop:hover .dropdown {
    visibility: visible;
	opacity: 1;
}

.dropdown li, .sup-dropdown li {
	position: relative;
    border-top: 1px solid rgba(0, 0, 0, 0.04);
}

.dropdown li:first-child, .sup-dropdown li:first-child {
    border-top: none;
}

.dropdown li a, .sup-dropdown li a {
    display: block;
    color: #666;
    font-size: 13px;
    font-family: 'Open Sans', sans-serif;
    padding: 11px 16px;
    text-decoration: none;
    text-transform: capitalize;
    transition: padding 0.2s ease-in-out;
    -moz-transition: padding 0.2s ease-in-out;
    -webkit-transition: padding 0.2s ease-in-out;
    -o-transition: padding 0.2s ease-in-out;
}


.dropdown > li:hover > a, .sup-dropdown li:hover > a {
	padding-left: 18px;
}

.dropdown li a i {
	margin: 0 0 0 -4px;
}

.navbar-default .navbar-nav .sup-dropdown {
    position: absolute;
    left: 100%;
    top: 0;
    width: 180px;
	background-color: #fff;
    margin-top: 10px;
    transition: margin-top 0.2s ease-in-out;
    -moz-transition: margin-top 0.2s ease-in-out;
    -webkit-transition: margin-top 0.2s ease-in-out;
    -o-transition: margin-top 0.2s ease-in-out;
    visibility: hidden;
    z-index: 3;
	box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
	-o-box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
	-moz-box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  	-webkit-box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.navbar-default .navbar-nav li.drop .dropdown li:hover .sup-dropdown {
    visibility: visible;
    margin-top: 0;
}

＆＃13;

＆＃13;

＆＃13;