problem image deformation

Add this:

.grid-image img {
	height: 100%;
}

div.grid-item div.grid-image {
	margin-bottom: 1em;
	height: 100%;
}

now
before

div.grid-item div.grid-image {
	margin-bottom: 1em;
}

but doesnt work ??

Read what I wrote…

.grid-image img