To improve paging loading performance across multiple devices, web developers can provide each image in different resolutions using the srcset attribute and let the browser choose which one to load e.g.:
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CSS trick: Setting background color of a selected HTML option element
Update 02.02.2018: As noted by Tom this now only works when the attribute multiple is set. Have you ever wanted to set the background color of a selected OPTION element of a drop down ? Unfortunately, setting the CSS background-color property does not work for (most/all?) browsers, but there is a workaround using the background-image …
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