File:Facebook Like React.pngFile:Facebook Like button.svg is a vector version of this file. It should be used in place of this PNG file when not inferior. File:Facebook Like React.png
File:Http2-explained-en.pdfcase.
.icon1 {
background: url(data:image/png;base64,<data>) no-repeat;
}
.icon2 {
background: url(data:image/png;base64,<data>) no-repeat;
}
3.3 Concatenation