Положение абсолютное центр
.child {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}
Grieving Gemsbok
.child {
position: absolute;
top: 50%;
left: 50%;
transform: translate(-50%, -50%);
}.wrapper img {
left: 50%;
transform: translate(-50%,0);
position: absolute;
z-index: 1
}position: absolute;
margin-left: auto;
margin-right: auto;
left: 0;
right: 0;
text-align: center;position: absolute;
margin-left: auto;
margin-right: auto;
left: 0;
right: 0;#content {
position: absolute;
left: 0;
right: 0;
margin-left: auto;
margin-right: auto;
width: 100px; /* Need a specific value to work */
}.child {
position: absolute;
top: 50%; /* position the top edge of the element at the middle of the parent */
left: 50%; /* position the left edge of the element at the middle of the parent */
transform: translate(-50%, -50%); /* This is a shorthand of
translateX(-50%) and translateY(-50%) */
}