JSFiddle - React, Tailwind, and code Playground

HTML

<label></label>

<button type="submit" class="submit" id="logginnbtn" title="Logg inn" value="">
    
    &nbsp;
    
</button>

CSS

#logginnbtn {
    background-image:url(http://www.euroworker.no/public/upload/login_sprite.png);
    background-repeat:no-repeat;
    background-position:0 0;
    background-color:none;
    border:none;
    outline:none;
    white-space: nowrap;
    width:77px;
    height:25px;
    cursor:pointer;
    position:relative;
}

#logginnbtn:hover {
    
    background-image:url(http://www.euroworker.no/public/upload/login_sprite.png);
    background-position: 0 77px;
    background-repeat:no-repeat;
    background-color:none;
    border:none;
    outline:none;
    white-space: nowrap;
    width:77px;
    height:25px;
    cursor:pointer;
    position:relative;
}