* {
    margin: 0;
    padding: 0;
    border: 0;
    outline: 0;
}
.center {
    margin-left: auto;
    margin-right: auto;
}
.otree-title {            
    margin-top:-30px; 
} 
.container {
    height: 50px;
    position: relative;
}
.centering {
    margin: 0;
    position: absolute;
    top: 50%;
    left: 50%;
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}