Do you want like this:
.submit1 {
background-color: #008CBA;
color: white;
text-align: center;
display: inline-block;
font-size: 18px;
border: none;
}
.submit2 {
background-color: #BA002D;
color: white;
text-align: center;
display: inline-block;
font-size: 18px;
border: none;
}
.form1 {
display:inline-block;
}
.center {
text-align:center;
}
<body>
<div class="center">
<form class="form1" action ="listingsPage.php" method="post">
<input type="submit" value="Express Interest" class="submit1">
</form>
<form class="form1" action ="listingsPage.php" method="post">
<input type="submit" value="Back to Listings" class="submit2">
</form>
</div>
</body>
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…