.margin-0 {margin: 0;}
.margin-top-0 {margin-top: 0;}
.margin-left-0 {margin-left: 0;}
.margin-right-0 {margin-right: 0;}
.margin-bottom-0 {margin-bottom: 0;}

.border-right-0 {border-right: 0;}

.center-absolute {position: absolute; top:50%; left:50%; transform: translate(-50%,-50%);}
.center-relative {position: relative; top:50%; left:50%; transform: translate(-50%,-50%);}


.text-align-center {text-align: center;}
.color-red {color: red;}
.display-none {display: none;}


.noselect {
    -webkit-touch-callout: none; /* iOS Safari */
    -webkit-user-select: none; /* Safari */
    -khtml-user-select: none; /* Konqueror HTML */
    -moz-user-select: none; /* Firefox */
    -ms-user-select: none; /* Internet Explorer/Edge */
    user-select: none; /* Non-prefixed version, currently
                                  supported by Chrome and Opera */
}