A space can also make the HTML format display very different

There was a bug in writing HTML today, with two tags always close to the display, but the two pieces of code are exactly the same as the previous one.

The error code is as follows

1                     <DivID= "Tool1"style= "width:80px;float:right;margin-top:30px;margin-right:40px;" >2                             3                                 <Divstyle= "width:65;height:25px;font-size:18px">4                                     <ahref= "<{$app}>/shopcar/">5                                     <spanclass= "Label label-success" >Shopping Cart</span> </a>6                                 </Div>7                             8                                 <Divstyle= "width:65;height:25px;font-size:18px">9                                     <ahref= "<{$app}>/user/">Ten                                     <spanclass= "Label Label-info">User Center</span></a> One                                 </Div> A                      </Div> -                     <DivID= "Tool2"style= "width:80px;float:right;margin-top:30px;margin-right:40px;" > -                            the                               <Divstyle= "width:65;height:25px;font-size:18px"><ahref= "<{$app}>/good/add"> -                                   <spanclass= "Label label-warning">Add Item</span></a> -                               </Div> -                            +                               <Divstyle= "width:65;height:25px;font-size:18px"><ahref= "<{$app}>/indent/"> -                                   <spanclass= "Label Label-danger"> +My order</span></a> A                               </Div> at                     </Div>

At first glance, the two ends of the code exactly the same, careful study, shopping cart after the </span> and </a> a space between, resulting in the format is not displayed correctly, deleted after the display is correct.

Similarly, if there is indentation or carriage return, there will also be different situations.

Prompt yourself to use line wrapping and indentation when coding.