将图像滑块高度设置为最小图像的高度

Question

我使用http://bxslider.com/作为响应式图片滑块。滑块当前将高度设置为最大图像的高度。我想让它成为最小图像的高度，并为大于最小图像的图像切掉任何多余的图像。

我尝试adaptiveHeight: true，但这会导致滑块调整大小时滑块下方的内容移动。我尝试使用css，以下几乎工作。

.bx-wrapper, .bx-viewport {
    height: 300px !important;
}

我在这里遇到的问题是300px看起来非常适合我的屏幕，但我有一个响应式网站，所以当我在较小的屏幕上观看时，图像下方有大量的空白区域，因为300px太大了。 / p>

Answer 1

为您的应用设置不同的屏幕分辨率。然后使用@media查询来更改CSS：

以下代码究竟对您的HTML做了什么：

1. 首先，每个浏览器页面都有自己的视口大小或窗口大小。
2. 媒体查询基于窗口大小。
3. 如果您的窗口大小属于特定范围，则会应用这些样式。
4. 要根据屏幕尺寸制作BX滑块响应，我们会调整height。

/* Default Style */
.bx-wrapper, .bx-viewport {
    height: 300px !important;
}
/* Smartphones (portrait and landscape) ----------- */
@media only screen and (min-device-width : 320px) and (max-device-width : 480px) {
    .bx-wrapper, .bx-viewport {
        height: 250px !important;
    }
}

/* Smartphones (landscape) ----------- */
@media only screen and (min-width : 321px) {
    .bx-wrapper, .bx-viewport {
        height: 275px !important;
    }
}

/* Smartphones (portrait) ----------- */
@media only screen and (max-width : 320px) {
/* Styles */
}

/* iPads (portrait and landscape) ----------- */
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) {
/* Styles */
}

/* iPads (landscape) ----------- */
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : landscape) {
/* Styles */
}

/* iPads (portrait) ----------- */
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : portrait) {
/* Styles */
}
/**********
iPad 3
**********/
@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : landscape) and (-webkit-min-device-pixel-ratio : 2) {
/* Styles */
}

@media only screen and (min-device-width : 768px) and (max-device-width : 1024px) and (orientation : portrait) and (-webkit-min-device-pixel-ratio : 2) {
/* Styles */
}
/* Desktops and laptops ----------- */
@media only screen  and (min-width : 1224px) {
/* Styles */
}

/* Large screens ----------- */
@media only screen  and (min-width : 1824px) {
/* Styles */
}

/* iPhone 4 ----------- */
@media only screen and (min-device-width : 320px) and (max-device-width : 480px) and (orientation : landscape) and (-webkit-min-device-pixel-ratio : 2) {
/* Styles */
}

@media only screen and (min-device-width : 320px) and (max-device-width : 480px) and (orientation : portrait) and (-webkit-min-device-pixel-ratio : 2) {
/* Styles */
}

/* iPhone 5 ----------- */
@media only screen and (min-device-width: 320px) and (max-device-height: 568px) and (orientation : landscape) and (-webkit-device-pixel-ratio: 2){
/* Styles */
}

@media only screen and (min-device-width: 320px) and (max-device-height: 568px) and (orientation : portrait) and (-webkit-device-pixel-ratio: 2){
/* Styles */
}

/* iPhone 6 ----------- */
@media only screen and (min-device-width: 375px) and (max-device-height: 667px) and (orientation : landscape) and (-webkit-device-pixel-ratio: 2){
/* Styles */
}

@media only screen and (min-device-width: 375px) and (max-device-height: 667px) and (orientation : portrait) and (-webkit-device-pixel-ratio: 2){
/* Styles */
}

/* iPhone 6+ ----------- */
@media only screen and (min-device-width: 414px) and (max-device-height: 736px) and (orientation : landscape) and (-webkit-device-pixel-ratio: 2){
/* Styles */
}

@media only screen and (min-device-width: 414px) and (max-device-height: 736px) and (orientation : portrait) and (-webkit-device-pixel-ratio: 2){
/* Styles */
}

/* Samsung Galaxy S3 ----------- */
@media only screen and (min-device-width: 320px) and (max-device-height: 640px) and (orientation : landscape) and (-webkit-device-pixel-ratio: 2){
/* Styles */
}

@media only screen and (min-device-width: 320px) and (max-device-height: 640px) and (orientation : portrait) and (-webkit-device-pixel-ratio: 2){
/* Styles */
}

/* Samsung Galaxy S4 ----------- */
@media only screen and (min-device-width: 320px) and (max-device-height: 640px) and (orientation : landscape) and (-webkit-device-pixel-ratio: 3){
/* Styles */
}

@media only screen and (min-device-width: 320px) and (max-device-height: 640px) and (orientation : portrait) and (-webkit-device-pixel-ratio: 3){
/* Styles */
}

/* Samsung Galaxy S5 ----------- */
@media only screen and (min-device-width: 360px) and (max-device-height: 640px) and (orientation : landscape) and (-webkit-device-pixel-ratio: 3){
/* Styles */
}

@media only screen and (min-device-width: 360px) and (max-device-height: 640px) and (orientation : portrait) and (-webkit-device-pixel-ratio: 3){
/* Styles */
}

我是前两个人做的。将此作为模板保存，您可以使用开发人员工具中的Chrome响应式设计测试程序测试不同的分辨率：

Answer 2

滑块设置bx-viewport到JS的高度，以响应屏幕大小（AKA响应）。

如果你想强制图片大小，你可以定位.bx-wrapper img，但是你需要媒体查询，否则你会失去响应能力。