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How can i center my button?

I am working on an page and i want to center my button in middle of the screen. https://gyazo.com/ca4bf6447d1500fae9f6f1b158d88171

.btn {
    border: none;
    font-family: inherit;
    font-size: inherit;
    color: inherit;
    background: none;
    cursor: pointer;
    padding: 25px 80px;
    display: inline-block;
    margin: 15px 30px;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 700;
    outline: none;
    position: relative;
    -webkit-transition: all 0.3s;
    -moz-transition: all 0.3s;
    transition: all 0.3s;

.btn:after {
    content: '';
    position: absolute;
    z-index: -1;
    -webkit-transition: all 0.3s;
    -moz-transition: all 0.3s;
    transition: all 0.3s;

/* Button 1 */
.btn-1 {
    border: 3px solid #fff;
    color: #fff;

/* Button 1e */
.btn-1e {
    overflow: hidden;

.btn-1e:after {
    width: 100%;
    height: 0;
    top: 50%;
    left: 50%;
    background: #fff;
    opacity: 0;
    -webkit-transform: translateX(-50%) translateY(-50%) rotate(45deg);
    -moz-transform: translateX(-50%) translateY(-50%) rotate(45deg);
    -ms-transform: translateX(-50%) translateY(-50%) rotate(45deg);
    transform: translateX(-50%) translateY(-50%) rotate(45deg);

.btn-1e:active {
    color: #0e83cd;

.btn-1e:hover:after {
    height: 260%;
    opacity: 1;

.btn-1e:active:after {
    height: 400%;
    opacity: 1;

Mod Note: Edited code to include CSS markup

2 Answers

Jonathan Grieve
Jonathan Grieve
Treehouse Moderator 91,253 Points

Try applying margins of 50% and auto to your css. So you'll have the browser automatically count the margin to the left and right of the containing element and center it vertically too.

.btn {
    margin: 50% auto;
Amrit Pandey
Amrit Pandey
17,595 Points