Ajax Loader
HTML 
<div class="container">
1
<div class="container">
2
  <ul id="nav">
3
    <li><a href="#" class="icon-home"></a></li>
4
    <li><a href="#" class="icon-camera"></a></li>
5
    <li><a href="#" class="icon-mail"></a></li>
6
    <li><a href="#" class="icon-comment"></a></li>
7
    <li><a href="#" class="icon-user"></a></li>
8
    <li><a href="#" class="icon-cog"></a></li>
9
  </ul>
10
</div>
 
CSS 
/*
1
/*
2
yeah, we're using LESS.
3
*/
4
body {
5
  display: block;
6
  background: lightgrey;
7
}
8
.container {
9
  text-align: center;
10
  position: absolute;
11
  top: 40%;
12
  left: 0;
13
  right: 0;
14
  bottom: 0;
15
}
16
#nav {
17
  font-size: 20px;
18
  display: inline-block;
19
  list-style: none;
20
  position: relative;
21
  padding: 0;
22
  -webkit-box-shadow: 0 0.5em 12px rgba(0, 0, 0, 0.75);
23
  -moz-box-shadow: 0 0.5em 12px rgba(0, 0, 0, 0.75);
24
  box-shadow: 0 0.5em 12px rgba(0, 0, 0, 0.75);
25
}
26
#nav li {
27
  display: block;
28
  position: relative;
29
  z-index: 20;
30
  float: left;
31
}
32
#nav li:hover:before {
33
  top: 2px;
34
  -webkit-box-shadow: inset 0 0 1.5em 0 rgba(0, 0, 0, 0.75);
35
  -moz-box-shadow: inset 0 0 1.5em 0 rgba(0, 0, 0, 0.75);
36
  box-shadow: inset 0 0 1.5em 0 rgba(0, 0, 0, 0.75);
37
}
38
#nav li:active a,
39
#nav li.active a {
40
  padding-top: 18px;
41
  padding-bottom: 5px;
42
  color: #00bff3;
43
  text-shadow: 0 -1px 0 #000000, 0 0 1em #00bff3;
44
}
45
#nav li:active:before,
46
#nav li.active:before {
47
  top: 7px;
48
  background: #2d2d2d;
49
  /* Old browsers */
50
 
51
  /* IE9 SVG, needs conditional override of 'filter' to 'none' */
52
 
53
  background: url(data:image/svg+xml;base64,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);
54
  background: -moz-linear-gradient(top, #2d2d2d 0%, #141414 99%);
55
  /* FF3.6+ */
56
 
57
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #2d2d2d), color-stop(99%, #141414));
58
  /* Chrome,Safari4+ */
59
 
60
  background: -webkit-linear-gradient(top, #2d2d2d 0%, #141414 99%);
61
  /* Chrome10+,Safari5.1+ */
62
 
63
  background: -o-linear-gradient(top, #2d2d2d 0%, #141414 99%);
64
  /* Opera 11.10+ */
65
 
66
  background: -ms-linear-gradient(top, #2d2d2d 0%, #141414 99%);
67
  /* IE10+ */
68
 
69
  background: linear-gradient(to bottom, #2d2d2d 0%, #141414 99%);
70
  /* W3C */
71
 
72
  filter: progid:dximagetransform.microsoft.gradient(startColorstr='#2d2d2d', endColorstr='#141414', GradientType=0);
73
  /* IE6-8 */
74
 
75
  border-bottom: 1px solid black;
76
}
77
#nav li:before {
78
  content: "";
79
  position: absolute;
80
  z-index: 10;
81
  width: 100%;
82
  height: 100%;
83
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
84
  -webkit-box-shadow: inset 0 0 1em 0 rgba(0, 0, 0, 0.25);
85
  -moz-box-shadow: inset 0 0 1em 0 rgba(0, 0, 0, 0.25);
86
  box-shadow: inset 0 0 1em 0 rgba(0, 0, 0, 0.25);
87
  border-left: 1px solid rgba(0, 0, 0, 0.35);
88
}
89
#nav li:after {
90
  content: "";
91
  height: 16px;
92
  position: absolute;
93
  z-index: 5;
94
  bottom: -7px;
95
  width: 100%;
96
  border-left: 1px solid black;
97
  border-bottom: 1px solid black;
98
}
99
#nav li:before {
100
  left: 0;
101
  background: #565656;
102
  /* Old browsers */
103
 
104
  /* IE9 SVG, needs conditional override of 'filter' to 'none' */
105
 
106
  background: url(data:image/svg+xml;base64,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);
107
  background: -moz-linear-gradient(top, #565656 0%, #262626 100%);
108
  /* FF3.6+ */
109
 
110
  background: -webkit-gradient(linear, left top, left bottom, color-stop(0%, #565656), color-stop(100%, #262626));
111
  /* Chrome,Safari4+ */
112
 
113
  background: -webkit-linear-gradient(top, #565656 0%, #262626 100%);
114
  /* Chrome10+,Safari5.1+ */
115
 
116
  background: -o-linear-gradient(top, #565656 0%, #262626 100%);
117
  /* Opera 11.10+ */
118
 
119
  background: -ms-linear-gradient(top, #565656 0%, #262626 100%);
120
  /* IE10+ */
121
 
122
  background: linear-gradient(to bottom, #565656 0%, #262626 100%);
123
  /* W3C */
124
 
125
  filter: progid:dximagetransform.microsoft.gradient(startColorstr='#565656', endColorstr='#262626', GradientType=0);
126
  /* IE6-8 */
127
 
128
}
129
#nav li:after {
130
  left: 0;
131
  background: #2d2d2d;
132
  /* Old browsers */
133
 
134
  /* IE9 SVG, needs conditional override of 'filter' to 'none' */
135
 
136
  background: url(data:image/svg+xml;base64,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);
137
  background: -moz-linear-gradient(top, #2d2d2d 23%, #141414 99%);
138
  /* FF3.6+ */
139
 
140
  background: -webkit-gradient(linear, left top, left bottom, color-stop(23%, #2d2d2d), color-stop(99%, #141414));
141
  /* Chrome,Safari4+ */
142
 
143
  background: -webkit-linear-gradient(top, #2d2d2d 23%, #141414 99%);
144
  /* Chrome10+,Safari5.1+ */
145
 
146
  background: -o-linear-gradient(top, #2d2d2d 23%, #141414 99%);
147
  /* Opera 11.10+ */
148
 
149
  background: -ms-linear-gradient(top, #2d2d2d 23%, #141414 99%);
150
  /* IE10+ */
151
 
152
  background: linear-gradient(to bottom, #2d2d2d 23%, #141414 99%);
153
  /* W3C */
154
 
155
  filter: progid:dximagetransform.microsoft.gradient(startColorstr='#2d2d2d', endColorstr='#141414', GradientType=0);
156
  /* IE6-8 */
157
 
158
}
159
#nav li:first-of-type:before,
160
#nav li:first-of-type:after {
161
  -webkit-border-radius: 4px 0 0 4px;
162
  -moz-border-radius: 4px 0 0 4px;
163
  border-radius: 4px 0 0 4px;
164
}
165
#nav li:last-of-type:before,
166
#nav li:last-of-type:after {
167
  -webkit-border-radius: 0 4px 4px 0;
168
  -moz-border-radius: 0 4px 4px 0;
169
  border-radius: 0 4px 4px 0;
170
}
171
#nav li a {
172
  position: relative;
173
  z-index: 10;
174
  display: block;
175
  padding: 12px 16px;
176
  color: #050505;
177
  text-decoration: none;
178
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.25);
179
}
180
#nav li a:hover {
181
  color: #00bff3;
182
  text-shadow: 0 -1px 0 #000000, 0 0 1em #00bff3;
183
}
184
@font-face {
185
  font-family: 'icomoon';
186
  src: url(data:font/opentype;charset=utf-8;base64,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) format("woff");
187
  font-weight: normal;
188
  font-style: normal;
189
}
190
[class^="icon-"]:before,
191
[class*=" icon-"]:before {
192
  font-family: 'icomoon';
193
  font-style: normal;
194
  speak: none;
195
  font-weight: normal;
196
  -webkit-font-smoothing: antialiased;
197
}
198
.icon-mail:before {
199
  content: "\e02b";
200
}
201
.icon-home:before {
202
  content: "\e012";
203
}
204
.icon-camera:before {
205
  content: "\e013";
206
}
207
.icon-cog:before {
208
  content: "\e01f";
209
}
210
.icon-comment:before {
211
  content: "\e02c";
212
}
213
.icon-user:before {
214
  content: "\e028";
215
}
216
 
 

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