CSS3 background－origin 属性指定在背景图像定位在哪里． 这个属性有三个不同的值： border－box ：背景图像从边框的左上角开始。 padding－box ：（默认）背景图像从左上角的填充边缘。 ＜！DOCTYPE html＞＜html lang＝＂en＂＞＜head＞ ＜meta charset＝＂UTF－8＂＞ ＜title ...

表中的数字指定完全支持该属性的第一个浏览器版本。 数字后面的 －webkit－ 或者 －moz－ 使用时需要指定前缀。 属性 ...

Cascading Style Sheets (CSS) give Web developers precise control over a page’s typography and layout. One secret weapon of CSS-based designs is the property, which adds images and color to the ...

Major browsers support CSS3 gradients (including Internet Explorer 10), but with different rendering engines, it's still good to have fallbacks. Designing the presentation layer of an HTML5 ...

Google's John Mueller reminded us that when it comes to your CSS background images, Google won't be indexing or ranking those images in image search. John Mueller said on Twitter "last I checked, we ...

Animated Web page backgrounds can be eye-catching, and you can create them using GIF files. When you add text and other content to your business Web pages, you don't have to worry about adding ...

Google's John Mueller said this morning in a webmaster hangout at the 20:55 mark that Google Image search does not index and rank images from CSS background code. He said if you want your images to ...

I specify, for my body background, a gradient from top to bottom, of one color to another, with a stop halfway of a third color. Let's call them colors A (top), B (mid), and C (bottom). Color C is the ...

WordPress is a content-management system that allows you to set up a website or blog quickly and easily. WordPress uses the Cascading Style Sheet (CSS) to set the design elements, color, font, size ...