#backTop{width:35px;height:35px;padding:10px;border-radius:4px;text-indent:-9999px;cursor:pointer;z-index:999999999;display:none;box-sizing:content-box;-webkit-box-sizing:content-box}#backTop.white{background:url(data:image/png;base64,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) no-repeat center center rgb(255 255 255 / .8);border:1px solid #ccc}#backTop.black{background:url(data:image/png;base64,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) no-repeat center center rgb(0 0 0 / .8)}#backTop.red{background:url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAADAAAAAwCAYAAABXAvmHAAAACXBIWXMAAAsTAAALEwEAmpwYAAAAIGNIUk0AAHolAACAgwAA+f8AAIDoAABSCAABFVgAADqXAAAXb9daH5AAAAFQSURBVHja7NixK0VxFMDx7+Ml6UVEvcFgUESSkgwYLEpY2GwMyiiT0WhmsMjbTBYGbzEYlJQSMflHDL6WaxSPe713dU6d6Z7fPedzb/feX7egkudoIucRgAAEIAABCEAAAhCAAPxfQBuwlmWDYobnLgFnSY8hYDtPd6ADuACOgRmgHdgHCnkAdAFV4ACoAAIbwBtwmHpPNc3sUW/V5U+O76kVtTmtnmkOX1bv1MUv6nbVE7XYSIBe9V6d+2b9jnqqtjQCoE99UGdrXLelnqut9QT0q4/q9A/Xb6pVta0egEH1SZ385UVYVy/V0l8CRtRndTylZ2hVvVI7/gIwlgw/mvIreEW9VjuzBEwkww+nPPxHLqk3ancWgKlk+IGMhv/IueRjWP5OfS2buYUkXzLewVaBV2AeOPqquBC/1wMQgAAEIAABCEAAAhCAAOQ13gcA+3bF8pg+ZEoAAAAASUVORK5CYII=) no-repeat center center rgb(217 97 81 / .9);border:1px solid #fff}#backTop.green{background:url(data:image/png;base64,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) no-repeat center center rgb(81 217 187 / .9);border:1px solid #fff}#backTop.smallsize{width:10px;height:10px;background-size:95%;right:20px! important;bottom:20px! important}#backTop.mediumsize{width:25px;height:25px;background-size:95%}#backTop.largesize{width:35px;height:35px;background-size:95%}