Right side of form cut off

Good day everyone! I am using Spun theme. I added this to my style sheet and the right side is cut off some… Is it what I did or is it a sizing issue within the them? you can see it here

/* =Forms
———————————————– */

.wpcf7-form {
color: #000;
border:1px solid #767e58;
border-radius:7px;
width:500px;
padding: 10px 20px;
margin-bottom:10px;
}

.wpcf7 input[type=”text”],
.wpcf7 input[type=”tel”],
.wpcf7 input[type=”email”],
.wpcf7 textarea
{
background-color: #dce1c8;
color: #000;
width: 300px;
border: 1px solid #767e58;
border-radius:7px;
}

.wpcf7 textarea
{
background-color: #dce1c8;
color: #000;
height: 250px;
width: 400px;
border: 1px solid #767e58;
}

https://wordpress.org/plugins/contact-form-7/