I'm having issues applying flex-box to this CSS toggle-switch extension: https://ghinda.net/css-toggle-switch/index.html
I downloaded it as a CDN, so I don't have its CSS files on me
Here is my sample index.html code:
<div class="settings">
            <p>Settings</p>
            <label class="switch-light switch-ios" onclick="">
            <input type="checkbox">
            <strong>
                Send Email Notifications
            </strong>
            <span class="switch-light-span">
                <span>Off</span>
                <span>On</span>
                <a></a>
            </span>
            </label>
            <label class="switch-light switch-ios" onclick="">
            <input type="checkbox">
            <strong>
                Set Profile to Public
            </strong>
            <span>
                <span>Off</span>
                <span>On</span>
                <a></a>
            </span>
            </label>
            <select name="timezone">
                <option value="volvo" selected>Select a Timezone</option>
                <option value="volvo">Volvo</option>
                <option value="volvo">Volvo</option>
                <option value="saab">Saab</option>
                <option value="fiat">Fiat</option>
                <option value="audi">Audi</option>
            </select>
            <div class="buttons">
                <button>Save</button>
                <button>Cancel</button>
            </div>
        </div> 
    </div>
Here is a sample CSS code:
/* SETTINGS */
.settings {
    display: flex;
    flex-direction: column;
}
.switch-light {
    display: flex !important;
    justify-content: space-between !important;
}
Apparently you have to apply the !important keyword if you're using a CDN to override their style sheets. So that's what I did, but I'm not getting the desired effect I want.
I was trying to apply a property to the span element, which is that entire button, but it is not working.
Here is an example of what I would like to achieve: 

Any suggestions?