style-black.css

* {
    margin: 0;
    padding: 0;
    box-sizing: inherit;
  }
    body{
        font-family: sans-serif;
        background-color: rgb(73, 73, 73);
        line-height: 1.5;
        height: 100vh;
        position: relative;
        display: flex;
        align-items: flex-start;
        justify-content: center;
    }
    .container{
        border: 2px solid rgb(198, 176, 199);
        border-radius: 5px;
        width: 60%;
        margin-top: 3rem;
        padding: 1rem 2rem;
    }

    .app-title{
        text-align: center;
        color: rgb(45, 173, 126);
    
    }  
    .add-task{
        border: 2px solid rgb(194, 183, 183);
        border-radius: 5px;
        margin: 1em 0; 
        padding: 10px 15px;
    }
    .task-list{
        border: 2px solid rgb(240, 236, 236);
        border-radius: 5px;
        margin: 1rem 0; 
        padding: 10px 15px;
    }
    .task-content{
        display: inline-block;
    }

    .theme-switch-wrapper {
        display: flex;
        align-items: center;
      
        em {
          margin-left: 10px;
          font-size: 1rem;
        }
      }
      .theme-switch {
        display: inline-block;
        height: 34px;
        position: relative;
        width: 60px;
      }
      
      .theme-switch input {
        display:none;
      }
      
      .slider {
        background-color: #ccc;
        bottom: 0;
        cursor: pointer;
        left: 0;
        position: absolute;
        right: 0;
        top: 0;
        transition: .4s;
      }
      
      .slider:before {
        background-color: #fff;
        bottom: 4px;
        content: "";
        height: 26px;
        left: 4px;
        position: absolute;
        transition: .4s;
        width: 26px;
      }
      
      input:checked + .slider {
        background-color: #66bb6a;
      }
      
      input:checked + .slider:before {
        transform: translateX(26px);
      }
      
      .slider.round {
        border-radius: 34px;
      }
      
      .slider.round:before {
        border-radius: 50%;
      }