回答編集履歴
1
追記
test
CHANGED
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@@ -55,3 +55,107 @@
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55
55
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<div class="change blue">色よ変われ！</div>
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56
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```
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58
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59
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# 追記
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60
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61
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.kokomo:beforeの色を変える
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62
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65
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```css
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66
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67
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.red{ background-Color: red;}
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68
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69
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.blue{ background-Color: blue;}
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70
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71
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.green{ background-Color:green;}
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72
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.beforered:before{background-Color: red;}
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75
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.beforeblue:before{ background-Color: blue;}
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76
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.beforegreen:before{ background-Color:green;}
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.box {margin: 20px;}
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.change {
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color: #fff;
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font-weight: bold;
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width: 200px;
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90
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91
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margin: 20px;
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92
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}
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.kokomo {
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color: #000000;
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margin: 20px;
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100
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font-weight: bold;
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102
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103
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}
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105
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.kokomo:before {
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106
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107
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content: '';
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position: absolute;
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top: 0;
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width: 20px;
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height: 20px;
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116
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border-radius: 50%;
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118
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}
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```
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123
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```javascript
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125
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$(function(){
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$('select').on('change',function(){
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$('.change').removeClass('red blue green').addClass($(this).val());
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$('.kokomo').removeClass('beforered beforeblue beforegreen').addClass("before"+$(this).val());
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});
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});
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```
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```HTML
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141
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<div class="box">
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<select class="select_color" name="onamae" data-required="no" data-type="select">
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<option value="blue">ブルー</option>
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<option value="red">レッド</option>
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<option value="green">グリーン</option>
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</select>
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</div>
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155
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156
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157
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<div class="change blue">ここの色が変わる！</div>
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158
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159
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<div class="kokomo beforeblue">ここも</div>
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160
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```
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