CSS code for creating a triangle underneath a menu item

Given that my client has presented me with a site design featuring a standard menu containing a downward triangle on the active item, I am feeling clueless about how to proceed. What would be the most effective approach for achieving this effect?

https://i.sstatic.net/vhAxX.jpg

Answer №1

If you're interested in creating arrows, triangles, and other shapes with CSS, check out this helpful tutorial:

For a closer look at how CSS Arrow Please! generates its arrows, visit:

By the way, here's a quick example I put together:

HTML:

<div class="active">
    <div>Active Menu Item</div>
</div>

CSS:

.active > div {
    width: 150px;
    padding: 10px;
    background-color: #f00;
    color: #fff;
    text-align: center;
}
.active::after {
    display:block;
    content: "";
    font-size: 0px; line-height: 0%; width: 0px;
    border-top: 20px solid #f00;
    border-left: 85px solid #fff;
    border-right: 85px solid #fff;
}

Check it out on JS Fiddle: http://jsfiddle.net/dmf3s97m/

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