回答編集履歴
1
もっとDRYに
test
CHANGED
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@@ -89,3 +89,93 @@
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89
89
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</html>
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90
90
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91
91
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```
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92
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+
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93
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---
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94
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+
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95
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もっとDRYに
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96
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97
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98
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99
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```html
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100
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101
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<!DOCTYPE HTML>
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102
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103
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<html lang="ja-JP">
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104
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105
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<head>
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106
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107
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<meta charset="UTF-8">
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108
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109
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<title></title>
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110
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111
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<style type="text/css">
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112
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113
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.contents {
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114
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115
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border: 1px solid #CCC;
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116
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117
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height: 600px;
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118
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119
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}
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120
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121
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.animate {
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122
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123
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background: red;
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124
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125
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}
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126
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127
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</style>
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128
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129
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</head>
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130
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131
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<body>
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132
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133
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<div>
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134
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135
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136
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137
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<div class="contents"></div>
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138
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139
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<div class="contents"></div>
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140
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141
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<div class="contents"></div>
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142
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143
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144
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145
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</div>
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146
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147
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<script src="https://code.jquery.com/jquery-2.1.4.min.js"></script>
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148
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149
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<script type="text/javascript">
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150
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151
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$(function () {
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152
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153
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$(window).scroll(function () {
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154
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155
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var selectors = $('.contents');
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156
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157
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var scroll = $(window).scrollTop();
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158
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159
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selectors.each(function () {
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160
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161
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var position = $(this).offset().top - $(window).height();
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162
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163
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if (position < scroll) {
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164
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165
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$(this).addClass("animate");
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166
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167
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}
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168
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169
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});
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170
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171
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});
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172
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173
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});
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174
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175
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</script>
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176
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177
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</body>
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178
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179
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</html>
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180
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181
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```
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