HTML Embedd - Allow CSS Font

We are trying to embed a timeline into our home page but the HTML Embed widget is now reading our font.

https://mrd-finance-mockup-1.webflow.io/

<html>
  <ul class="timeline">
	<li data-year="1" data-text="Lorem ipsum dolor sit amet, consectetur."></li>
	<li data-year="2" data-text="Lorem ipsum dolor sit amet, consectetur."></li>
	<li data-year="3" data-text="Lorem ipsum dolor sit amet, consectetur."></li>
	<li data-year="4" data-text="Lorem ipsum dolor sit amet, consectetur."></li>
	<li data-year="5" data-text="Lorem ipsum dolor sit amet, consectetur."></li>
</ul>
</html>

<style>
  
  @font-face {
    font-family: 'Montserrat'; !important /*a name to be used later*/
    src: url('https://fonts.googleapis.com/css?family=Montserrat'); /*URL to font*/
}
  
  .timeline {
    font-family: 'Montserrat';font-size: 22px;
	width:800px;
	height: 20px;
	list-style: none;
	text-align: justify;
	margin: 80px auto;
	background: -webkit-gradient(left top, left bottom, color-stop(0%, rgba(255,255,255,0)), color-stop(45%, rgba(255,255,255,0)), color-stop(51%, rgba(191,128,11,1)), color-stop(57%, rgba(255,255,255,0)), color-stop(100%, rgba(255,255,255,0)));
	background: linear-gradient(to bottom, rgba(255,255,255,0) 0%, rgba(255,255,255,0) 45%, rgba(0,175,205 ,0.5) 51%, rgba(255,255,255,0) 57%, rgba(255,255,255,0) 100%);
}

.timeline:after {
    display: inline-block;
    content: "";
    width: 100%;
}

.timeline li {
	display: inline-block;
	width: 20px;
	height: 20px;
	background: #00AFCD;
	text-align: center;
	line-height: 1.2;
	position: relative;
	border-radius: 50%;
}
.timeline li:before {
	display: inline-block;
	content: attr(data-year);
	font-size: 26px;
	position: absolute;
	left: 50%;
	transform: translateX(-50%);
}

.timeline li:nth-child(odd):before {
	top: -40px;
}
.timeline li:nth-child(even):before {
	bottom: -40px;
}

.timeline li:after {
	display: inline-block;
	content: attr(data-text);
	font-size: 16px;
	position: absolute;
	left: 50%;
	transform: translateX(-50%);
}

.timeline li:nth-child(odd):after {
	bottom: 0;
	margin-bottom: -10px;
	transform: translate(-50%, 100%);
}
.timeline li:nth-child(even):after {
	top: 0;
	margin-top: -10px;
	transform: translate(-50%, -100%);
}
</style>

Issue: semicolon has to be on the end of line!

you can get an idea how to eg. here

css - Apply !important to font-family with more than one option - Stack Overflow