回答編集履歴
1
追記
test
CHANGED
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@@ -41,3 +41,49 @@
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41
41
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<div id="l_margin"></div>
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42
42
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43
43
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```
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44
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+
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45
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+
# ローレベル版
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46
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+
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47
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+
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48
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+
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49
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```javascript
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50
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51
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<script>
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52
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53
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window.onload=function(){
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54
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55
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var box = document.getElementById('rect');
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56
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57
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var step=30;
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58
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59
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var span=10;
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60
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61
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var max_margin=100;
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62
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63
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var l_margin=0;
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64
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65
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var flg=false;
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66
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67
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var timerId=setInterval(function(){
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68
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69
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box.style.marginLeft = l_margin + "px";
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70
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71
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l_margin+=(flg?-1:1)*span;
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72
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73
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if(l_margin>=max_margin || l_margin<=0) flg=!flg;
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74
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75
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document.getElementById('l_margin').innerHTML=l_margin;
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76
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77
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},step);
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78
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79
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};
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80
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81
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</script>
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82
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+
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83
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84
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85
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<div id="rect">box</div>
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86
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+
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87
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<div id="l_margin"></div>
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88
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+
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89
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```
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