.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:-ms-flexbox;display:flex;transition:opacity .3s ease;-ms-flex-align:center;align-items:center;-ms-flex-pack:center;justify-content:center}.mdl-fileupload__content>i,.mdl-fileupload__content>span{vertical-align:middle}