.mdl-fileupload{position:relative;cursor:pointer}.mdl-fileupload__input{position:absolute;z-index:-1;overflow:hidden;width:.1px;height:.1px;opacity:0}.mdl-fileupload__content{z-index:1;display:-webkit-box;display:-ms-flexbox;display:flex;-webkit-transition:opacity .3s ease;transition:opacity .3s ease;-webkit-box-align:center;-ms-flex-align:center;align-items:center;-webkit-box-pack:center;-ms-flex-pack:center;justify-content:center}.mdl-fileupload__content>i,.mdl-fileupload__content>span{vertical-align:middle}