.rm-block{margin:0 auto;padding:0 20px;box-sizing:border-box}
.rm-content{position:relative;overflow:hidden;transition:max-height .4s ease}
.rm-content p{margin:0 0 1em}
/* затухание текста снизу; #fff поменяйте на цвет фона блока */
.rm-block:not(.is-open):not(.no-toggle) .rm-content::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:60px;
  background:linear-gradient(rgba(255,255,255,0),#fff);pointer-events:none}
  
.rm-btn{
   color: #ffffff;
    background-color: #006666;
    border-style: none !important;
    border-radius: 6px;
    box-shadow: 0px 15px 30px -10px rgba(0, 11, 48, 0.2) !important;
    font-weight: 600;
    transition-duration: 0.2s;
    transition-property: background-color, color, border-color, box-shadow, opacity, transform, gap;
    transition-timing-function: ease-in-out;
    font-size: 14px;
    padding-left: 30px;
    padding-right: 30px;
    height: 45px;
    font-family: var(--t-text-font, Arial);
    cursor: pointer;
}
.rm-btn:hover{background-color: #ff7d40}