我需要将我的导航栏链接更改为白色，并将它们在导航栏上隔开。我已经为此编写了代码，但我似乎无法弄清楚它为什么/在哪里不断被覆盖。导航栏的背景是一个图像，链接似乎在没有图像的情况下变为白色，那么有没有办法解决这个问题并将图像保留在背景中？
谁能帮我理解我做错了什么？
.navbar {
background-image: url("images/navbarbgnew.png");
background-size: cover;
margin: -30px 0 15px 0;
}
.navbar ul {
display: flex;
justify-content: space-around;
}
.navbar ul li a {
color: #FFF;
font-family: "Helvetica," sans-serif;
font-weight: 600;
font-size: 14px;
}<nav class="navbar navbar-expand-md navbar-light bg-light mb-3">
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation"><span class="navbar-toggler-icon"></span></button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="nav navbar-nav">
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
BOOKS
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<a class="dropdown-item" href="#">Branding Sutra</a> …我需要在引导程序导航栏中将链接隔开。我已经为此编写了代码，但我似乎无法弄清楚它为什么/在哪里不断被覆盖。
谁能帮我理解我做错了什么？
.navbar {
background-image: url("images/navbarbgnew.png");
background-size: cover;
margin: -30px 0 15px 0;
}
.navbar ul {
display: flex;
justify-content: space-around;
}
.navbar ul li a {
color: #FFF;
font-family: "Helvetica," sans-serif;
font-weight: 600;
font-size: 14px;
}<nav class="navbar navbar-expand-md navbar-light bg-light mb-3">
<button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent" aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation"><span class="navbar-toggler-icon"></span></button>
<div class="collapse navbar-collapse" id="navbarSupportedContent">
<ul class="nav navbar-nav">
<li class="nav-item dropdown">
<a class="nav-link dropdown-toggle" href="#" id="navbarDropdownMenuLink" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false">
BOOKS
</a>
<div class="dropdown-menu" aria-labelledby="navbarDropdownMenuLink">
<a class="dropdown-item" href="#">Branding Sutra</a> …