iframe#tumblr_controls{
white-space:nowrap;
right:54px;
margin: 0px;
position:fixed; 
}

.button_top {top:3px; margin: 0 0 0 0; right:3px; position:fixed ;z-index:999999; margin-bottom:5px; color:#fff; border: 1px solid rgba(0,0,0,0.18);background: #3e3e3e;background: rgba(0,0,0,0.38);text-shadow: 1px 1px 0 rgba(0,0,0,0.08); -webkit-border-radius: 2px;-moz-border-radius: 2px;border-radius: 2px;white-space: nowrap;outline: 0;text-decoration: none;cursor: pointer;overflow: hidden;text-overflow: ellipsis;
font: 600 12px/18px "Helvetica Neue","HelveticaNeue",Helvetica,Arial,sans-serif;height: 20px;padding: 0 5px;-webkit-font-smoothing: antialiased;-webkit-user-select: none;-moz-user-select: none;-ms-user-select: none;user-select: none;-webkit-box-sizing: border-box;-moz-box-sizing: border-box;-ms-box-sizing: border-box;-o-box-sizing: border-box;box-sizing: border-box;-webkit-transition-property: padding;-moz-transition-property: padding;-ms-transition-property: padding;-o-transition-property: padding;transition-property: padding;-webkit-transition-duration: .1s;-moz-transition-duration: .1s;-ms-transition-duration: .1s;-o-transition-duration: .1s;transition-duration: .1s;-webkit-transition-timing-function: ease;-moz-transition-timing-function: ease;-ms-transition-timing-function: ease;-o-transition-timing-function: ease;transition-timing-function: ease;}
.button_top a{color:#fff;}
.button_top a:hover{color:#fff;}