使用媒体查询单独定位iPhone 4和5

Question

我有这些媒体查询为iPhone 4和iPhone 5应用不同的样式

/* iPhone 4 (landscape) */
@media only screen and (min-width:320px) and (max-width:480px) and (orientation:landscape) { 
    .background img {
      height: 5px;
    }
}
/* iPhone 4 (portrait) */
@media only screen and (min-width:320px) and (max-width:480px) and (orientation:portrait) { 
    .background img {
      height: 10px;
    }
}
/* iPhone 5 (landscape) */
@media only screen and (min-width:320px) and (max-width:568px) and (orientation:landscape) { 
    .background img { 
      height: 245px;
    }
    .logo img {
        height: 205px;
        width: 205px;
    }
}
/* iPhone 5 (portrait) */
@media only screen and (min-width:320px) and (max-width:568px) and (orientation:portrait) { 
    .background img {
      height: 210px;
    }
    .logo img {
        height: 170px;
        width: 170px;
    }
    .top-content h2 {
        font-size: 1.8em;
        line-height: 120%;
        margin-bottom: 20px;
    }
    .main-container {
        margin-top: 30px;
        margin-left: 15px;
        margin-right: 15px;
    }
}

问题是在iPhone 5上,iPhone 4的样式也适用.我怎么能阻止这个？

Answer 1

另一个有用的媒体功能是设备纵横比.

请注意,iPhone 5的宽高比不是16:9.实际上是40:71.

iPhone < 5:
@media screen and (device-aspect-ratio: 2/3) {}

iPhone 5:
@media screen and (device-aspect-ratio: 40/71) {}

iPad:
@media screen and (device-aspect-ratio: 3/4) {}

参考:媒体查询@ W3C