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a {  -webkit-transition: 1s;  -moz-transition: 1s;  transition: 1s}
a {  -moz-transition: 1s;    -o-transition: 1s;       transition: 1s}
a {  -webkit-border-radius: 4px;     -moz-border-radius: 4px;          border-radius: 4px}