style.css

body{
    text-align: center;
    background: url(back.jpg) center center fixed;
    background-size: cover;
}

.header{
    color: white;
    background: linear-gradient(black,purple);
    font-size: 36px;
    height: 100px;
    width: 600px;
    margin: 0 auto;
    margin-top: -40px;
}

.maincontainer{
    width: 200px;
    margin: 0 auto;
}

.input{
    height: 30px;
    font-size: 1.3em;
}



#size{
    height: 3px;  
    width: 3px;
    border-radius: 50%;
    background: black;
    margin: 0 auto;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
}

#slider{
    margin: 10px auto;
}

#thicknessinput{
    position: relative;
}

.container{
    height: 400px;
    width: 1400px;
    background-color: white;
    margin: 10px auto;
    margin-top: 0px;
    cursor: crosshair;
    border: 2px solid black;
}

.butinputs{
    height: 80px;
    display: flex;
    width: 600px;
    margin: 0 auto;
    justify-content: space-around;
}

#paint{
    background-color: #fff;
    cursor: crosshair;
}

.input2{
    height: 40px;
    width: 100px;
    background-color: purple;
    color: white;
    font-size: 2em;
    display: flex;
    float: left;
    border-radius: 10%;
    padding: 10px;
    text-align: center;
}

.buttons{
  cursor: pointer;
    
}


.input2:hover{
    background-color: white;
    color: purple;
}

.buttons:active{
    top: 4px;   
}

.eraseMode{
    background-color: red;
    color: white;
}