回答編集履歴
1
コメントからの追加回答です
answer
CHANGED
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@@ -83,4 +83,129 @@
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83
83
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height: 100px;
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84
84
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}
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85
85
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86
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```
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87
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88
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修正
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89
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---
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90
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jquery使える場合、これでどうでしょうか？
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91
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```html
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92
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<!doctype html>
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93
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<html>
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94
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<head>
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95
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<meta charset="UTF-8">
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96
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<title>sample</title>
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97
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<link rel="stylesheet" href="ファイル名.css">
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98
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<script src="http://ajax.aspnetcdn.com/ajax/jQuery/jquery-2.1.4.min.js"></script>
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99
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</head>
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100
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<body>
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101
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<header>
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102
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<h1>header</h1>
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103
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</header>
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104
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<main>
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105
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<aside>
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106
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<div class="inner">
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107
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sidebar
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108
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</div>
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109
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</aside>
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110
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<article>
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111
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<div class="content">
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112
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<section>
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113
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section-1
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114
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</section>
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115
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<section>
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116
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section-2
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117
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</section>
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118
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<section>
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119
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section-3
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120
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</section>
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121
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<section>
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122
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section-4
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123
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</section>
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124
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</div>
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125
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</article>
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126
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</main>
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127
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<footer>
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128
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footer
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129
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</footer>
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130
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<script>
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131
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(function() {
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132
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var asideHeight = $('aside').outerHeight();
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133
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134
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$(window).scroll(function() {
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135
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var scroll = $(window).scrollTop();
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136
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var footerTop = $('footer').offset().top;
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137
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var windowHeight = $(window).height();
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138
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139
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if (scroll <= 50) {
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140
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$('aside').css({
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141
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top:50 - scroll,
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142
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height:asideHeight + scroll
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143
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});
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144
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}
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145
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+
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146
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if(scroll >= footerTop - windowHeight) {
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147
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$('aside').css({height:windowHeight - scroll + footerTop - windowHeight});
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148
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}
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149
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150
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})
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151
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152
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})();
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153
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</script>
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154
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+
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155
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</body>
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156
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</html>
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157
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```
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158
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```css
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159
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* {
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160
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margin: 0;
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161
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padding: 0;
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162
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}
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163
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+
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164
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html,body {
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165
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height: 100%;
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166
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}
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167
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+
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168
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main {
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169
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display: flex;
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170
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}
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171
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172
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article {
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173
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background: #afafaf;
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174
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width: calc(100% - 250px);
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175
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margin-left: 250px;
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176
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}
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177
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+
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178
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header {
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179
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background: #00f;
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180
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width: 100%;
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181
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height: 50px;
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182
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}
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183
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+
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184
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section {
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185
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border: 5px solid #000;
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186
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height: 200px;
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187
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margin-bottom: 10px;
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188
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}
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189
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+
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190
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aside {
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191
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background: #f00;
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192
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width: 250px;
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193
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height: calc(100% - 50px);
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194
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position: fixed;
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195
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top: 50px;
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196
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bottom: 50px;
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197
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overflow-y: scroll;
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198
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}
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199
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+
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200
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.inner {
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201
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background: #fff;
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202
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height: calc(100% + 200px);
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203
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margin: 50px 10px;
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204
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}
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205
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+
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206
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footer{
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207
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+
background: #333;
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208
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+
width: 100%;
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209
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+
height: 50px;
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210
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+
}
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86
211
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```
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