是否可以在 CSS 中向导航栏添加噪声层?像这个:
使用 CSS 或背景图像(无需在 Photoshop 或类似工具中进行编辑。)
.navbar-inner {
min-height: 40px;
padding-right: 20px;
padding-left: 20px;
background-color: #fafafa;
background-image: -moz-linear-gradient(top, #ffffff, #f2f2f2);
background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#ffffff), to(#f2f2f2));
background-image: -webkit-linear-gradient(top, #ffffff, #f2f2f2);
background-image: -o-linear-gradient(top, #ffffff, #f2f2f2);
background-image: linear-gradient(to bottom, #ffffff, #f2f2f2);
background-repeat: repeat-x;
border: 1px solid #d4d4d4;
-webkit-border-radius: 4px;
-moz-border-radius: 4px;
border-radius: 4px;
filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffffffff', endColorstr='#fff2f2f2', GradientType=0);
*zoom: 1;
-webkit-box-shadow: 0 1px 4px rgba(0, 0, 0, 0.065);
-moz-box-shadow: 0 1px 4px rgba(0, 0, 0, 0.065);
box-shadow: 0 1px 4px rgba(0, 0, 0, 0.065);
}