html {
  box-sizing: border-box;

}
*, *:before, *:after {
  box-sizing: inherit;
}

body {
    margin: 0;
}

img {
    max-width: 100%;
    height: auto;
}

.center {    
    min-height: 100vh;
    display: -ms-flexbox;
    display: -webkit-flex; 
    display: flex;
    align-items: center;
    flex-direction: column;
    justify-content: center;
}

.scrollabletextbox {
    max-width: calc(100% - 40px);
 	height: 100px;
	max-height: 100px;
	width: 800px;
    font-size: 1.2vmax;
    font-family: Helvetica, Arial, sans-serif;
}