/* margin */
.m-0 {margin: 0;}
.m-10p {margin: 10px;}

/* padding */
.p-0 {padding: 0;}

/* width */
.w-100 {width: 100%;}
.w-90 {width: 90%;}
.w-80 {width: 80%;}
.w-70 {width: 70%;}
.w-60 {width: 60%;}
.w-50 {width: 50%;}
.w-40 {width: 40%;}
.w-30 {width: 30%;}
.w-20 {width: 20%;}
.w-10 {width: 10%;}

/* color */
.black {color: black;}
.blue {color: blue;}
.green {color: green;}
.white {color: white;}

/* background color */
.bg-black {background-color:black;}
.bg-black-peart {background-color: #122132;} /* black peart */

/* border */
.b-1-red {border: 1px solid red;}
.b-1-blue {border: 1px solid blue;}