<!DOCTYPE html><html><head> <title>三級(jí)菜單demo</title> <meta charset=&...
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//html: <div class="nav"> <ul class='onebox'> <li name=...
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效果如下： <div class="nav"> <ul class='onebox'> <li name='...
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盒子模型 <!DOCTYPE html> <html lang="en"> <head> ...
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<!DOCTYPE html><style> div:nth-child(1){ width: ...
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<!DOCTYPE html><style> div:nth-child(1){ width: ...
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//html: <body> <!-- nav --> <div class="nav"> <ul> <...
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<html><head> <meta charset="UTF-8"> <style&...
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<!DOCTYPE html><html lang="en"><head> <meta charset=&quo...
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<!DOCTYPE html><html lang="en"><head> <meta charset=&quo...
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<html><form> <input id="email" type="text"...
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有類選擇器，id選擇器，標(biāo)簽選擇器，子類選擇器，父類選擇器等 <style type="text/css"> &nb...
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<!DOCTYPE html> <html lang="en"> <head> &nbs...
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繼續(xù)根據(jù)17173網(wǎng)站導(dǎo)航條的的下拉菜單進(jìn)行模仿下拉菜單案例！結(jié)合兩次作業(yè)，個(gè)人理解制作導(dǎo)航一定要提前有多規(guī)劃，不光要規(guī)劃好各盒子的寬度高度，更要對(duì)盒子的層級(jí)有清晰的定位！只有提前定位好層級(jí)，才能更好...
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<!DOCTYPE html><html lang="en"><head> <meta charset=&quo...
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