@media screen and (max-width: 768px) {
    .skul {
        width: 300px;
    }
  }
  
  /* 为宽度小于320px的设备设置背景色 */
  @media screen and (max-width: 320px) {
    .skul {
        width: 300px;
    }
  }
/* .skul, .skli {
    margin: 15px;
    padding: 0px;
} */
.skul {
    width: 300px;
}
.skli {
    list-style: none;
    color: white;
    font-size: 18px;
    margin: 35px 0;
    position: relative;
}
.skli::before,.skli::after {
    content: "";
    display: block;
    height: 8px;
    width: 100%;
    background-color: rgb(89, 102, 110);
    position: absolute;
    bottom: -15px;
    border-radius: 6px;
}
.skli::before {
    box-shadow: rgba(red, green, blue);

}

.skli::after {
    background-image: linear-gradient(90deg,#b9c5c9,#a2d6e4);
    animation-duration: 1.2s;
    animation-fill-mode: forwards;
    animation-timing-function: ease-in-out;
}

.html::after {
    animation-name: html;
}
.CSS::after {
    animation-name: CSS;
}
.js::after {
    animation-name: js;
}
.net::after {
    animation-name: net;
}
.SQLserver::after {
    animation-name: MySQL;
}
.MySQL::after {
    animation-name: MySQL;
}
@keyframes html {
    from{
        width: 0;
    }
    to{
        width: 80%;
    }
}

@keyframes CSS {
    from{
        width: 0;
    }
    to{
        width: 80%;
    }
}

@keyframes js {
    from{
        width: 0;
    }
    to{
        width: 55%;
    }
}

@keyframes net {
    from{
        width: 0;
    }
    to{
        width: 50%;
    }
}

@keyframes SQLserver {
    from{
        width: 0;
    }
    to{
        width: 80%;
    }
}

@keyframes MySQL {
    from{
        width: 0;
    }
    to{
        width: 80%;
    }
}