I have all my divs necessary for my tic tac toe game, however I can't seem to find a simpler way to make a grid and not have any borders so it's just a grid and not 9 full squares... I think it's an issue in CSS.

<html>
    <head>
        <title>First Tic Tac Toe</title>
        <link rel="stylesheet" type="text/css" href="style.css">
    </head>
    <body>
        <h1>Tic Tac Toe</h1>

        <div class="wrapper">
        <div class="gameboard">

            <div class="Row1">
                <div id="cell1"></div>
                <div id="cell2"></div>
                <div id="cell3"></div>
            </div>

            <div class="Row2">
                <div id="cell4"></div>
                <div id="cell5"></div>
                <div id="cell6"></div>
            </div>

            <div class="Row3">
                <div id="cell7"></div>
                <div id="cell8"></div>
                <div id="cell9"></div>
            </div>


        </div>

        <div class="button">

        <button>New Game</button>
        <button>End Game</button>

        </div>
        </div>







    </body>
</html>

HERE IS THE CSS, I HAVE 9 BOXES I NEED A GRID, HOW DO I DO THAT?

.gameboard {
    width: 330px;
    height:310px;
    border:3px solid white;
    z-index: 1;

}

.wrapper {
    width: 330px;
    margin:0 auto;
}

.button {

     background-color:white;
     width: 160px;
     margin:0 auto;

    }

.row1, .row2, .row3 {
    clear:both;

}

#cell1,#cell2,#cell3 {
    width:100px;
    height:100px;
    border:3px solid black;
    float: left;

}

#cell4,#cell5,#cell6 {
    width:100px;
    height:100px;
float: left;
    border:3px solid black;
}

#cell7,#cell8,#cell9 {
    width:100px;
    height:100px;
    float: left;
    border:3px solid black;

}

Not 100% sure what your saying but lets have a look.

Here we have a grid for "tic tac toe", you can use float: left; to put 9 boxes into one container to line up these boxes in a row (3 a row due to width: 100px; and the overall container width: 300px;)

HTML:

<div>
    <div></div>
    <div></div>
    <div></div>
    <div></div>
    <div></div>
    <div></div>
    <div></div>
    <div></div>
    <div></div>
</div>

CSS:

div {
    width: 300px;
    height: 600px;
}

div div {
    width: 100px;
    height: 100px;
    outline: 1px solid;
    float: left;
}

DEMO HERE

Now if we want the border like when you normally play the game lets do something like this:

CSS:

div {
    width: 310px;
    height: 600px;
}
div div {
    width: 100px;
    height: 100px;
    float: left;
}
div div:nth-child(-n+3) {
    border-bottom: 1px solid;
}
div div:nth-child(-n+6) {
    border-bottom: 1px solid;
}
div div:nth-child(1), div:nth-child(2), div:nth-child(4), div:nth-child(5), div:nth-child(7), div:nth-child(8) {
    border-right: 1px solid;
}

Note that its early in the morning and there could be a better was to get that layout, brain not be fully working yet. But that is a way that will work.

DEMO HERE

NOTE: Only just seen I set the height: 600px; for some reason, you can lower that to fit the box.

Update:

Your code with easier grid:

HTML:

 <h1>Tic Tac Toe</h1>

<div class="wrapper">
    <div class="gameboard">
        <div></div>
        <div class="leftright"></div>
        <div></div>
        <div class="updown"></div>
        <div class="middle"></div>
        <div class="updown"></div>
        <div></div>
        <div class="leftright"></div>
        <div></div>
    </div>
    <div class="button">
        <button>New Game</button>
        <button>End Game</button>
    </div>
</div>

CSS:

.wrapper {
    width: 330px;
    margin:0 auto;
}
.gameboard {
    width: 330px;
    height:310px;
    border:3px solid white;
    z-index: 1;
}
.gameboard div {
    width: 100px;
    height: 100px;
    float: left;
}
.middle {
    border: 1px solid;
}
.button {
    background-color:white;
    width: 160px;
    margin:0 auto;
}
.updown {
    border-top: 1px solid;
    border-bottom: 1px solid;
}
.leftright {
    border-left: 1px solid;
    border-right: 1px solid;
}

So to make it easier for you, I have based it around your code and put in an easier grid. Using classes I made to set the borders that create the layout of the game board.

DEMO HERE

You make a 3 × 3 grid in HTML and CSS by writing a 3 × 3 HTML table and setting the dimensions of its cells in CSS. It is absurd not to use a table for a tic tac toe grid, which is a tabular structure if there ever was one.

<style>
td { width: 1em; height: 1em; line-height: 1 }
</style>
<table>
<tr><td><td><td>
<tr><td><td><td>
<tr><td><td><td>
</table>

You normally don’t need id attributes here, as you can refer to cells by their structural position, both in CSS and JavaScript, unless you need to support ancient browsers.

The details depend on the detailed requirements. Now the question says “not have any borders”, yet the CSS code clearly sets borders.

~~Like @NoobEditor said in his comment: show us what you've tried so far next time.~~

You can achieve this by using divs floated next to each other, acting as columns. Inside those divs you add more divs acting as rows.

CSS

.column{
   float: left;
   width: 70px;
   height: 70px;
   border: 1px solid blue;
   overflow: hidden;
}

.row{
    width: 68px;
    height: 25px;
    border: 1px solid red;
}

Example here.

来源：https://stackoverflow.com/questions/21014209/how-do-i-make-a-grid-with-html-and-css-with-divs

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