style.css

body,html {
    padding: 0%;
    margin: 0%;
    min-width:100vw;
    min-height:100vh;

    display: flex;
    display: -webkit-flex;
    flex-wrap: nowrap;
    flex-direction: column;
    justify-content: stretch;
    align-items: stretch;
    align-content: center;
}

header >* {
display: inline
}

footer {
  text-align: center;
  padding: 5px;
}




#page {
    flex:1;
    overflow-y: scroll;
		overflow-x: hidden;
}

.tp-item {
	display: flex;
  display: -webkit-flex;
  justify-content: stretch;
	align-items:space-between;	
}

.tp-item > .tp-link {
	flex: 1;
}

.tp-item.active .tp-link {
    z-index: 2;
    color: #fff;
    background-color: #007bff;
    border-color: #007bff;
}

.tp-item .btn {
	display: flex;
  justify-content: center;
  align-items: center;
	transform: translateX(100vw);
	transition: transform .5s;
}

.tp-item .btn.edit {
	transform: translateX(0px);
}

.alert {
    position: absolute;
    width: 100%;
    display: none;
}

.middle-center {
    height:100%;
    width:100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.dropzone,.dropzone-content {
	box-sizing: border-box;
	display: none;
	position: fixed;
	width: 100%;
  height: 100%;
  left: 0;
  top: 0;
	border: 11px dashed #60a7dc;
}
.dropzone {
  z-index: 100;
}

.dropzone-content {
	background: rgba(96,167,220,.8);
  z-index: 99;
}