这是一些代码,允许您设置最大列和行,以及可选地设置起始列和行号(默认值:1),并可选地为它们设置类指示符(默认为“c”和“r”) . 它使用 LESS 中的循环技术来自动生成代码。
更少的代码
@col-width: -24px;
@row-width: -24px;
.img-pos(@col, @row) {
background-position:
(((@col - 1) * @col-width) - 1)
(((@row - 1) * @row-width) - 1);
}
.generateGridSelectors(@maxCols, @maxRows, @colStart: 1, @rowStart: 1, @colSel: "c", @rowSel: "r") when (@maxCols > 0) and (@colStart < @maxCols) and (@maxRows > 0) and (@rowStart < @maxRows) {
@colStop: @maxCols + 1;
@rowStop: @maxRows + 1;
.makeGrid(@c: @colStart) when (@c < (@maxCols + 1)) {
.setRow(@r: @rowStart) when (@r < (@maxRows + 1)) {
//generate selector and position
(~".@{colSel}@{c}.@{rowSel}@{r}") {
.img-pos(@c, @r);
}
//interate next row
.setRow(@r + 1);
}
//end row loop
.setRow(@rowStop) {}
//start row loop
.setRow();
//iterate next column
.makeGrid(@c + 1);
}
//end column loop
.makeGrid(@colStop) {}
//start grid loops
.makeGrid();
} //end generateGridSelectors
//call your build (not sure how well it will handle real large numbers)
.generateGridSelectors(10, 10);
CSS 输出
.c1.r1 {
background-position: -1px -1px;
}
.c1.r2 {
background-position: -1px -25px;
}
.c1.r3 {
background-position: -1px -49px;
}
...
...
.c10.r8 {
background-position: -217px -169px;
}
.c10.r9 {
background-position: -217px -193px;
}
.c10.r10 {
background-position: -217px -217px;
}