styles.css

*{
    margin:0;
    padding:0;
    
}

body{
    width:100vw;
    height:100vh;
    background:#42455a;
    
}

h1, h2{
    text-align:center;
    color:#fff;
    text-decoration: underline;
}

h1{
    padding: 8px;
}

.center {
    margin: 0;
    position: absolute;
    top: 50%;
    left: 50%;
    -ms-transform: translate(-50%, -50%);
    transform: translate(-50%, -50%);
}


.courses-header{
    position:relative;
    top:35px;
}
.container{
    text-align: center;
}

.input-box{
    position: relative;
    top:50px;
    
}

.buttons{
    position:absolute;
    display:flex;
    left:50%;
    top:75%;
    transform: translate(-50%, -50%);
    padding:5px
}

.buttons button{
    display:flex;
    border-radius: 100rem;
    padding: 1rem;
    font-family: 'Avenir Next';
    font-size: 1rem;
    padding: .5rem 3rem;
    color:white;
    box-shadow: 0 0 6px 0 rgba(157, 96, 212, 0.5);
    border: solid 3px transparent;
    background-image: linear-gradient(rgba(255, 255, 255, 0), 
    rgba(255, 255, 255, 0)), linear-gradient(101deg, #78e4ff, #ff48fa);
    background-origin: border-box;
    background-clip: content-box, border-box;
    box-shadow: 2px 1000px 1px #42455a inset;
}

.add-btn{
    margin:5px
} 

.buttons > .add-btn:hover {
    box-shadow: none;
    color: white;
  }

.cal-btn{
    margin:5px
}
  
.buttons > .cal-btn:hover {
box-shadow: none;
color: white;
}

.del-btn{
    margin:5px
}

.buttons > .del-btn:hover {
box-shadow: none;
color: white;
}

.gpa-text{
    position:absolute;
    top: 55%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size:20px;
    background: linear-gradient(to right,#78e4ff, #ff48fa);
    -webkit-text-fill-color: transparent;
    -webkit-background-clip: text;
    
}

.output-box{
    position: absolute;
    top: 60%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 15%;
    height:6%;
    line-height: 32px;
    text-align:center;
    background-color:#fff;
}