CSS error, in sidebar

Hi!

When I try to insert the shortode of my form to the sidebar, the css format goes away.

(The class changes to: form-control user-error)

I made a custom css for it, in my themes custom css section:

.caldera-grid .form-control{
    display: block;
width: 100%;
box-sizing: border-box;
    border-radius: 2em;
padding: 8px 25px 8px 25px;
    border: solid #9eadb1 1px;
    background: #fff right center no-repeat;
font: inherit;
height:auto;
transition: disabled;
-webkit-box-shadow: none;
	-moz-box-shadow: none;
	box-shadow: none;
}

Can you help me please, to fix this?

Thanks

https://ww.wp.xz.cn/plugins/caldera-forms/