CSS div的包含类

Question

So my logic of Div ID's and Classes must be WAY off.

Heres whats going on:

As you can see the blocks which say PS don't align center with the slider (Which is inside a container.

Here is my css:

/*Front Page Buttons */

#frontpage-Button-Cont {

    height: 350px;

}

.button-cont {
    width: 175px;
    float: left;
    margin-left: 10px;
    margin-top: 10px;
    height: 250px;
}

.thumbnail {
    color: #fff;
    font-size: 5em;
    background: #1f4e9b;
    width: 175px;
    height: 135px;
    text-align: center;

}
.pheader {
    color: #DC143C;
    min-width: 175px;
    text-align: center;


}
.paragraph {
    text-align: center;
}

#Align-content {
    margin: 0 auto;
}

And here is the html:

<div id="frontpage-Button-Cont">
    <div id="Align-content">
        <div class="button-cont">
            <div class="thumbnail">
                PS
            </div>

            <div class="paragraph">
                <div class="pheader">
                    HEADER
                </div>

                <p>dadaasdasdadadad
            </div>
        </div>

        <div class="button-cont">
            <div class="thumbnail">
                PS
            </div>

            <div class="paragraph">
                <div class="pheader">
                    HEADER
                </div>

                <p>dadaasdasdadadad
            </div>
        </div>

        <div class="button-cont">
            <div class="thumbnail">
                PS
            </div>

            <div class="paragraph">
                <div class="pheader">
                    HEADER
                </div>

                <p>dadaasdasdadadad
            </div>
        </div>

        <div class="button-cont">
            <div class="thumbnail">
                PS
            </div>

            <div class="paragraph">
                <div class="pheader">
                    HEADER
                </div>

                <p>dadaasdasdadadad
            </div>
        </div>
    </div>
</div>

My theory is that I'm using classes incorrectly?

Thanks.

Answer 1

You can Add this to your CSS

#frontpage-Button-Cont {
  width:100%;
}

#Align-content {
  display:table;
}

With this your margin:o auto can work

View This Demo http://jsfiddle.net/VGPeW/

Answer 2

You need to make sure that the containing div (in this case frontpage-Button-Cont ) is the same width as your slider above it. Then add the property text-align:center to the container. That should fix your issue.