Horizontally centering text in CSS animations - css

Question

The CSS seems to be horizontally centering the text by the first letter. I'd like to make it be perfectly centered on the page, without breaking the animation. I added a gradient to show the exact horizontal center of the page.
.wrapper {
height: 100vh;
background: linear-gradient(to right, #1e5799 0%,#ffffff 50%,#7db9e8 100%);
}
.container {
text-align: center;
}
.vcenter {
position: relative;
top: calc(50%);
-webkit-transform: translateY(-50%);
-ms-transform: translateY(-50%);
transform: translateY(-50%);
}
.container h2 {
background: red;
display: inline-block;
position: absolute;
opacity: 0;
overflow: visible;
-webkit-animation: rotateWord 12s linear infinite 0s;
-ms-animation: rotateWord 12s linear infinite 0s;
animation: rotateWord 12s linear infinite 0s;
margin: 0;
}
.container h2:nth-child(2) {
-webkit-animation: rotateWord 12s linear infinite 3s;
-ms-animation: rotateWord 12s linear infinite 3s;
animation: rotateWord 12s linear infinite 3s;
}
.container h2:nth-child(3) {
-webkit-animation: rotateWord 12s linear infinite 6s;
-ms-animation: rotateWord 12s linear infinite 6s;
animation: rotateWord 12s linear infinite 6s;
}
.container h2:nth-child(4) {
-webkit-animation: rotateWord 12s linear infinite 9s;
-ms-animation: rotateWord 12s linear infinite 9s;
animation: rotateWord 12s linear infinite 9s;
}
#-webkit-keyframes rotateWord {
0% {
opacity: 0;
}
2% {
opacity: 0;
-webkit-transform: translateY(-30px);
}
5% {
opacity: 1;
-webkit-transform: translateY(0px);
}
17% {
opacity: 1;
-webkit-transform: translateY(0px);
}
20% {
opacity: 0;
-webkit-transform: translateY(30px);
}
80% {
opacity: 0;
}
100% {
opacity: 0;
}
}
#-moz-keyframes rotateWord {
0% {
opacity: 0;
}
2% {
opacity: 0;
-ms-transform: translateY(-30px);
}
5% {
opacity: 1;
-ms-transform: translateY(0px);
}
17% {
opacity: 1;
-ms-transform: translateY(0px);
}
20% {
opacity: 0;
-ms-transform: translateY(30px);
}
80% {
opacity: 0;
}
100% {
opacity: 0;
}
}
#keyframes rotateWord {
0% {
opacity: 0;
}
2% {
opacity: 0;
-webkit-transform: translateY(-30px);
transform: translateY(-30px);
}
5% {
opacity: 1;
-webkit-transform: translateY(0px);
transform: translateY(0px);
}
17% {
opacity: 1;
-webkit-transform: translateY(0px);
transform: translateY(0px);
}
20% {
opacity: 0;
-webkit-transform: translateY(30px);
transform: translateY(30px);
}
80% {
opacity: 0;
}
100% {
opacity: 0;
}
}
<div class="wrapper">
<div class="container vcenter">
<h2>HEY THERE THIS IS TEXT</h2>
<h2>DIFFERENT TEXT</h2>
<h2>THIS IS TEXT</h2>
<h2>DIFFERENT LENGTHS OF TEXT</h2>
</div>
</div>

Answer 1

Make sure to set the correct transform values in the #keyframes, also the middle div container can be removed to make it easier.
jsFiddle
body {
margin: 0;
}
.container {
height: 100vh;
text-align: center;
background: linear-gradient(to right, #1e5799 0%, #ffffff 50%, #7db9e8 100%);
}
.container h2 {
position: absolute;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
opacity: 0;
margin: 0;
}
.container h2:nth-child(1) {
animation: rotateWord 12s linear infinite 0s;
}
.container h2:nth-child(2) {
animation: rotateWord 12s linear infinite 3s;
}
.container h2:nth-child(3) {
animation: rotateWord 12s linear infinite 6s;
}
.container h2:nth-child(4) {
animation: rotateWord 12s linear infinite 9s;
}
#keyframes rotateWord {
0% {
opacity: 0;
}
2% {
opacity: 0;
transform: translate(-50%, -30px);
}
5% {
opacity: 1;
transform: translate(-50%, 0px);
}
17% {
opacity: 1;
transform: translate(-50%, 0px);
}
20% {
opacity: 0;
transform: translate(-50%, 30px);
}
80% {
opacity: 0;
}
100% {
opacity: 0;
}
}
<div class="container">
<h2>HEY THERE THIS IS TEXT</h2>
<h2>DIFFERENT TEXT</h2>
<h2>THIS IS TEXT</h2>
<h2>DIFFERENT LENGTHS OF TEXT</h2>
</div>