Ajax Loader
HTML 
<div class="tape"></div>
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<div class="tape"></div>
 
CSS 
html {
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html {
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  background-color: salmon;
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  background-image: linear-gradient(hsla(0,0%,0%,.3), hsla(0,0%,100%,.1)),
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                    linear-gradient(left, hsla(0,0%,0%,.025) 50%, transparent 50%);
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  background-size: 100% 100%,
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                   1.5em 1.5em;
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  box-sizing: border-box;
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  min-height: 100%;
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  padding: 6em 3em;
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}
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.tape {
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  background-color: hsla(0,0%,100%,.2);
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  box-shadow: inset 0 0 1em .5em hsla(0,0%,100%,.1);
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  height: 3em;
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  position: absolute;
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  transform: rotate(-30deg);
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  width: 9em;
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  -webkit-filter: drop-shadow(0 1px 1px hsla(0,0%,0%,.3));
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}
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.tape:after,
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.tape:before {
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  background-size: .4em .4em;
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  bottom: 0;
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  content: '';
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  position: absolute;
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  top: 0;
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  width: .2em;
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}
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.tape:after {
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  background-image: linear-gradient(45deg, transparent 50%, hsla(0,0%,100%,.3) 50%),
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                    linear-gradient(-45deg, transparent 50%, hsla(0,0%,100%,.3) 50%);
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  background-position: 0 100%;
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  left: -.2em;
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}
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.tape:before {
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  background-image: linear-gradient(135deg, transparent 50%, hsla(0,0%,100%,.3) 50%),
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                    linear-gradient(-135deg, transparent 50%, hsla(0,0%,100%,.3) 50%);
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  background-position: 100% 100%;
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  right: -.2em;
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}
 

Pure CSS tape

CSSDeck G+