Use js to add borders to td. the visibility and display attributes of tr and td under Different Conditions

* ****************** Use js to add a border for td ************* * ******************* css design is as follows :. td {border-width: 1px1px1px; border-style: solid; border-color: 8DB1A1 ;}assume that a td is defined as: & lt; td

* ****************** Use js to add a border for td ************* ********************

The css design is as follows:

. Td {
Border-width: 1px 1px 1px 1px;
Border-style: solid;
Border-color: 8DB1A1;
}

Assume that a td is defined as follows:

 

You can add a border for td as follows

Document. getElementById ('name'). className = 'td ';

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******************* Visibility and display attributes of the application *************** *******

The visibility attribute is hidden, but tr or td still occupies the position during display. visibility: hidden (hidden), visible (Display)

The display attribute is used to hide tr or td but does not occupy the position of the display. display: block (display) and none (hide)