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Icons Disappear after Upgrade


Product Progress® Kendo UI® for jQuery
Kendo Version 2017.2.621


Icons disappear after a Kendo UI for jQuery upgrade.


As of the R1 2017 release, Kendo UI widgets utilize font-icons instead of sprites. This approach outdates some CSS, which are now removed from the built-in styles.


To provide for the backward compatibility of any custom icons you add to your project, include the following styles in your application:

/* Provides backward compatibility support for custom sprites */
.k-sprite {
    display: inline-block;
    width: 16px;
    height: 16px;
    overflow: hidden;
    background-repeat: no-repeat;
    font-size: 0;
    line-height: 0;
    text-align: center;
    -ms-high-contrast-adjust: none;

/* Removes sprite styles from font icons */
.k-sprite.k-icon {
    font-size: 16px;
    line-height: 1;
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