$loader-width: 20px;
$loader-border-width: 3px;

div.wpcf7 {
	.ajax-loader {
		position: relative;
		border-radius: 50%;
		width: $loader-width;
		height: $loader-width;
		border: $loader-border-width solid transparent;
		margin: 0 15px;
		background: none;
		animation: tm_spin 1s linear infinite;
		z-index: 11;
	}
}

@keyframes tm_spin {
	0% {
		transform: rotate(0deg);
	}
	100% {
		transform: rotate(360deg);
	}
}