.mySlides {display:none;}

img {
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: 40%;
  }

  .center {
    text-align: center;
    border: 3px solid rgb(0, 102, 128);
  }

  .centerButtons {
    text-align: center;
  }

.griddy{
  text-align: center;
}

  .w3-content,.w3-auto{margin-left:auto;margin-right:auto}.w3-content{max-width:980px}.w3-auto{max-width:1140px}
  .w3-display-container{position:relative}

  .w3-button{width:100%;text-align:left;padding:8px 16px}
  .w3-button{white-space:normal}
  .w3-button:first-child,.w3-dropdown-click:hover > .w3-button:first-child{background-color:#ccc;color:#6b6eaa}

  .w3-button{border:none;display:inline-block;padding:8px 16px;vertical-align:middle;overflow:hidden;text-decoration:none;color:inherit;background-color:inherit;text-align:center;cursor:pointer;white-space:nowrap}
.w3-btn:hover{box-shadow:0 8px 16px 0 rgba(0,0,0,0.2),0 6px 20px 0 rgba(0,0,0,0.19)}
.w3-btn,.w3-button{-webkit-touch-callout:none;-webkit-user-select:none;-khtml-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none}   
.w3-disabled,.w3-btn:disabled,.w3-button:disabled{cursor:not-allowed;opacity:0.3}.w3-disabled *,:disabled *{pointer-events:none}

.w3-black,.w3-hover-black:hover{color:#fff!important;background-color:#938edc!important}
.w3-display-topright{position:absolute;right:0;top:0}
.w3-large{font-size:18px!important}
.w3-padding-16{padding-top:16px!important;padding-bottom:16px!important}

.w3-display-middle{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);-ms-transform:translate(-50%,-50%)}