How customize button witch css

For customize of the button CSS selector should correct.

Here is a basic example for customization with correct CSS selector.

#tta__listent_content_1.tta__listent_content {
padding: 8px 16px;
border: 1px solid #000;
border-radius: 4px;
background-color: #fff;
color: #000;
font-size: 14px;
font-weight: bold;
text-transform: uppercase;
text-align: center;
cursor: pointer;
transition: all 0.2s ease-in-out;
}

#tta__listent_content_1.tta__listent_content:hover {
background-color: #000;
color: #fff;
}