Question

我有以下纯CSS规则：

#cboxOverlay{
  background:url(images/overlay.png) repeat 0 0; 
  opacity: 0.9; 
  filter: alpha(opacity = 90);
}

当我用less（lessc）进行编译时，它会使alpha(opacity = 90)成为Less函数。
如何将alpha(opacity = 90)转换为简单的CSS？

Answer 1

要escape个字符串，您需要像这样murder <- subset(crime, offense == "murder") murder <- SpatialPointsDataFrame(murder[,c("lon", "lat")], data=murder, proj4string = CRS("+proj=longlat +datum=WGS84 +no_defs +ellps=WGS84 +towgs84=0,0,0")) p <- ggmap(get_map(location=c(lon=(max(murder$lon)+min(murder$lon))/2, lat=(max(murder$lat)+min(murder$lat))/2), maptype="toner-lite", language="es-ES", crop = TRUE, zoom=12, force=T), darken = c(0.5, "gray")) respaldo <- murder mapas <- "C:/Users/Li/Documents/" d <- unique(respaldo$month) for (i in d){ murder <- respaldo[respaldo$month==i,] mapa <- p+geom_point(data=murder@data, aes(x=murder@coords[,1], y=murder@coords[,2], color=as.numeric(hour)), alpha=0.5,size=7) + scale_color_viridis_c(option="C",breaks=c(0,2,4,8,12,16,20,23), labels=c("00:00","02:00", "04:00","08:00","12:00","16:00","20:00","23:00"), name="Hour", guide=guide_legend( keyheight = unit(3, units = "mm"), keywidth=unit(6, units = "mm"), label.position = "bottom", title.position = 'top', nrow=1, label.theme=element_text(size = 6,face = "bold",color = "grey2",family = "Gotham"), title.theme=element_text(size = 6,face = "bold",color = "grey2",family = "Gotham", hjust=0.5) )) ggsave(filename=paste0(mapas,i,".png"),plot=mapa, bg="transparent", width =15, height = 15, units="cm", dpi=500) }来包装它，这将使编译器按原样输出字符串。

更改：

~'<string>'

收件人：

filter: alpha(opacity = 90);

Answer 2

这应该有效：

#cboxOverlay{
  background:url(images/overlay.png) repeat 0 0; 
  opacity: 0.9; 
  filter: ~"alpha(opacity = 90)";
}

另请参阅：http://lesscss.org/#escaping

lesscss如何转义括号

2 个答案: